CN100572894C - Backlight module and assemble method thereof - Google Patents
Backlight module and assemble method thereof Download PDFInfo
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- CN100572894C CN100572894C CNB2008101313633A CN200810131363A CN100572894C CN 100572894 C CN100572894 C CN 100572894C CN B2008101313633 A CNB2008101313633 A CN B2008101313633A CN 200810131363 A CN200810131363 A CN 200810131363A CN 100572894 C CN100572894 C CN 100572894C
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- lamp source
- source group
- heat radiation
- storage tank
- backboard
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Abstract
The invention provides a kind of backlight module and assemble method thereof.Backlight module comprises a framework, a backboard, a heat radiation film and a lamp source group.Backboard is arranged at the offside of framework, forms the storage tank with a lateral openings with framework.Backboard has at least one raised or sunken, the raised or sunken lateral openings that is adjacent to.The heat radiation film is attached on the backboard, and the heat radiation film has first end and second end.The contiguous lateral openings of first end, second end is away from lateral openings.Lamp source group can be inserted or detach in storage tank.When lamp source group is inserted storage tank by lateral openings, keep a preset distance by the raised or sunken lamp source group and first end of making.When lamp source group was inserted a precalculated position of storage tank, lamp source group was film adhered with heat radiation.
Description
Technical field
The invention relates to a kind of backlight module and assemble method thereof, and particularly relevant for a kind of backlight liquid crystal display module and assemble method thereof.
Background technology
Advantages such as LCD has gently, thin, short, little, high image quality and life-span are long develop into the main flow display on the market gradually.Wherein, LCD includes display panels and backlight module.Backlight module is in order to provide display floater required light source.
Wherein, backlight module comprises a framework, a heat dissipation element and a lamp source group.Lamp source group is arranged in the framework.Heat dissipation element is arranged between lamp source group and framework usually, in order to the unnecessary heat energy of the lamp source group that leaves.
Be ease of assembly and maintenance, develop the backlight module that a kind of extractable and changeable lamp source recently.In assembling process, assembler can directly be inserted lamp source group in the framework can finish assembling.When lamp source group needed repairing, the maintenance personal can directly detach framework with lamp source group, promptly replaceable lamp source group.
When avoiding keeping in repair, lamp source group is being inserted and is being detached in the process, produce collision or heat dissipation element generation displacement with heat dissipation element, cause the damage of lamp source group or heat dissipation element, cause maintenance to be difficult for, general known way is the spacing that increases lamp source group and heat dissipation element, but the spacing that increases lamp source group and heat dissipation element will significantly reduce the effect of heat radiation, cause the backlight module temperature to rise, influence the life-span and the picture quality of LCD.
Therefore, under the prerequisite that does not influence lamp source group heat dissipation, how effectively to solve the backlight module in extractable and changeable lamp source, when substituting lamp source group, can promptly backlight module be inserted and be detached to lamp source group, and can not damage lamp source group or heat dissipation element, be those skilled in the art the subject under discussion that solves of anxious desire.
Summary of the invention
The invention relates to a kind of backlight module and assemble method thereof, it utilizes the recessed surface on the backboard or the design of nonreentrant surface, make lamp source group in the process of inserting or detaching, all keep a preset distance, the phenomenon that the film of further avoiding dispelling the heat is started with the film that dispels the heat.
According to an aspect of the present invention, a kind of backlight module is proposed.Backlight module comprises a framework, a backboard, a heat radiation film and a lamp source group.Backboard is arranged at the offside of this framework, forms a storage tank with this framework, and this storage tank has a lateral openings.Backboard has at least one raised or sunken, the raised or sunken lateral openings that is adjacent to.The heat radiation film is attached on the backboard, has first end and second end.And the contiguous lateral openings of first end, second end is away from lateral openings.Storage tank can be inserted or detach to lamp source group.Wherein when lamp source group is inserted storage tank by lateral openings, keep a preset distance by the raised or sunken lamp source group and first end of making.When lamp source group was inserted the bottom of storage tank, lamp source group was film adhered with heat radiation.This framework has a butting section, protrude from this storage tank, and be away from this lateral openings, and this butting section is positioned at the offside of this backboard in fact, when this lamp source group is inserted the bottom of this storage tank, this lamp source group against this butting section so that this lamp source group and this heat radiation are film adhered.
If this backboard has at least one projection, this projection by the surface of this backboard towards height that this storage tank protruded thickness greater than this first end of this heat radiation film, and should projection between this first end and this lateral openings; This storage tank has the bottom land with respect to this lateral openings, and this backboard has two projectioies, is arranged at contiguous this lateral openings part and contiguous this bottom land part respectively; This lamp source group comprises a lower plate, and this lower plate has two grooves this two projection corresponding to this backboard.
If this backboard has at least one depression, this depression by the surface of this backboard towards this storage tank outside the recessed degree of depth greater than the thickness of this first end of this film that dispels the heat, and this first end is attached in this depression; This storage tank has the bottom land with respect to this lateral openings, and this backboard has two depressions, is arranged at contiguous this lateral openings part and contiguous this bottom land part respectively; This depression is for strip, so that this whole first end of this heat radiation film all is attached in this depression.
A kind of assemble method of backlight module is proposed according to a further aspect in the invention.The assemble method of backlight module may further comprise the steps: a framework, a backboard, a heat radiation film and a lamp source group are provided.This backboard is arranged at the offside of this framework, forms a storage tank with this framework, and this storage tank has a lateral openings.Backboard has at least one raised or sunken, the raised or sunken lateral openings that is adjacent to.The heat radiation film is attached on the backboard.The heat radiation film has one first end and one second end.The contiguous lateral openings of first end, second end is away from lateral openings.By lateral openings lamp source group is inserted storage tank, keep a preset distance by raised or sunken lamp source group and first end of heat radiation film of making; This framework has a butting section, and it protrudes from this storage tank, and is away from this lateral openings, in the step of this insertion, when this lamp source group is inserted this storage tank, this lamp source group against this butting section so that this lamp source group and this heat radiation are film adhered.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 illustrates the schematic diagram of the backlight module of first embodiment of the invention;
Fig. 2 illustrates the backboard of Fig. 1 and the stereogram of heat radiation film;
The lamp source group that Fig. 3 A～Fig. 3 D illustrates Fig. 1 is inserted the schematic diagram of the process of storage tank;
Fig. 4 illustrates the schematic diagram of the backlight module of second embodiment of the invention;
Fig. 5 illustrates the backboard of Fig. 4 and the stereogram of heat radiation film; And
The lamp source group that Fig. 6 A～Fig. 6 D illustrates Fig. 4 is inserted in the schematic diagram of the process of storage tank.
Drawing reference numeral
100,200: backlight module
110: framework
111: storage tank
111a: lateral openings
111b: bottom land
112: the butting section
120: backboard
121,122: projection
221,222: depression
140: lamp source group
141: light-emitting component
142,143: groove
144: upper plate
145: lower plate
130: the heat radiation film
131: the first ends
132: the second ends
D11, D12, D21, D22: preset distance
D121, D122: the height that projection is protruded by the surface of backboard
D131: the thickness of first end
D132: the thickness of second end
D221, D222: depression by the surface of back of the body version the recessed degree of depth.
The specific embodiment
First embodiment
Please refer to Fig. 1, it illustrates the schematic diagram of the backlight module 100 of first embodiment of the invention.Backlight module 100 comprises a framework 110, a backboard 120, a heat radiation film 130 and a lamp source group 140.Framework 110 has a butting section 112.Backboard 120 is arranged at the bottom of framework 110, forms a storage tank 111 with framework 110, and storage tank 111 has a lateral openings 111a and a bottom land 111b with respect to lateral openings 111a.Backboard 120 has two projectioies 121 and 122.Projection 121 is adjacent to lateral openings 111a, and projection 122 is adjacent to bottom land 111b.Heat radiation film 130 is attached on the backboard 120, and heat radiation film 130 has one first end 131 and one second end, 132, the first ends, 131 contiguous lateral openings 111a, 111b at the bottom of second end, 131 adjacent grooves.In when assembling, lamp source group 140 is inserted in storage tank 111 by lateral openings 111a.When lamp source group 140 was damaged, lamp source group 140 can detach storage tank 111 by lateral openings 111a, repairs or replaces other lamp source groups 140.
Shape for clearer protruding 121 and 122 please be simultaneously with reference to Fig. 1 and Fig. 2, and Fig. 2 illustrates the backboard 120 of Fig. 1 and the stereogram of heat radiation film 130.As shown in Figure 2, projection 121 and 122 is circular raised surface.
Below, describe the process that lamp source group 140 is inserted storage tank 111 in detail more with several schematic diagrames.Please refer to Fig. 3 A～Fig. 3 D, its lamp source group 140 that Fig. 1 is shown is inserted the schematic diagram of the process of storage tank 111.
As shown in Figure 3A, lamp source group 140 is positioned at outside the storage tank 111, and does not insert as yet in the storage tank 111.Lamp source group 140 comprises at least one light-emitting component 141, and light-emitting component 141 is in order to provide a light.Lamp source group 140 also comprises upper plate 144 and lower plate 145, and wherein lower plate 145 has two grooves 142,143, and after the assembling, it corresponds respectively to the projection 121,122 of backboard 120.
Shown in Fig. 3 B, the operator inserts storage tank 111 by lateral openings 111a with lamp source group 140, and lamp source group 140 arrives at the projection 121 of contiguous lateral openings 111a at this moment.With regard to the relation of the projection 121 of contiguous lateral openings 111a and the film 130 that dispels the heat, the height D121 that projection 121 is protruded towards storage tank 111 by the surface of backboard 120 is greater than the thickness D131 of first end 131 of heat radiation film 130, and projection 121 is between first end 131 and lateral openings 111a.So, being inserted in the process of storage tank 111 in lamp source group 140, the lower plate 145 of lamp source group 140 at first abuts to projection 121, and is propped up by projection 121.Make lamp source group 140 and first end 131 of heat radiation film 130 keep a preset distance D11.Thus, lamp source group 140 can not touch first end 131 of heat radiation film 130, more heat radiation film 130 can not started or displacement.
Preferably, the part at projection 121 contiguous lateral openings 111a places is level and smooth, so that lamp source group 140 can move along level and smooth projection 121 in the process near projection 121.
Shown in Fig. 3 C, it illustrates out the projection 122 that lamp source group 140 arrives at 111b at the bottom of the adjacent grooves.In lamp source group 140 during near the bottom land 111b of storage tank 111, because the height D122 that another projection 122 is protruded towards storage tank 111 by the surface of backboard 120 is greater than the thickness D122 of second end 132 of heat radiation film 130, and this projection 122 is between second end 132 and bottom land 111b.So, against protruding 122 o'clock, will be propped up by projection 122, make lamp source group 140 and second end 132 of heat radiation film 130 keep a preset distance D12.Thus, lamp source group 140 can not touch second end 132 of heat radiation film 130, more heat radiation film 130 can not started or displacement.
Then, shown in Fig. 3 D, lamp source group 140 is inserted in the storage tank 111 fully at this moment.Because the butting section 112 of framework 110 protrudes from the inwall of storage tank 111 downwards, and is positioned at the bottom land 111b of storage tank 111, and butting section 112 is positioned at the offside of backboard 120 in fact.When lamp source group 140 was inserted in storage tank 111 fully, the upper plate 144 of lamp source group 140 was resisted against butting section 112, so that lamp source group 140 is close towards the heat radiation film 130 of backboard 120, and fitted with heat radiation film 130.
Wherein, for fear of lamp source group 140 towards heat radiation film 130 near the time still propped up by the projection 121,122 of backboard 120, the lower plate 145 of the lamp source group 140 of present embodiment has two grooves 142,143, and it corresponds respectively to the projection 121,122 of backboard 120.Thus, when lamp source group 140 was resisted against butting section 112, lamp source group 140 can be successfully close towards heat radiation film 130, and fit with heat radiation film 130.
Wherein, lamp source group 140 often produces a large amount of heat energy in operation.When lamp source group 140 was closely fitted with heat radiation film 130, the heat energy of lamp source group 140 can waltz through heat radiation film 130 and conduct on the backboard 120, to reach the effect of heat radiation.
Preferably, backboard 120 and heat radiation film 130 more can have electric conductivity.When lamp source group 140 was closely fitted with heat radiation film 130, heat radiation film 130 and backboard 120 more can be used as the earth terminal of lamp source group 140.
In the present embodiment, the material of heat radiation film 130 comprises metal.Metal has high-termal conductivity and high conductivity, makes heat radiation film 130 have thermal conduction characteristic and characteristics of electrical conductivity simultaneously.
In addition, light-emitting component 141 for example is a CCFL (CCFL) or a light emitting diode (LED).If when light-emitting component 141 was CCFL, the lower plate 145 of lamp source group 140 often more comprised a reflector plate (not shown), reflector plate is in order to reflection ray, or the surface of lower plate 145 directly makes the material of apparatus reflection function.Reflector plate is arranged at lamp source group 140 and regards to backboard 120 parts.When lamp source group 140 was inserted the bottom land 111b of storage tank 111, reflector plate was fitted with heat radiation film 130.Because reflector plate generally also is a metal material, can reach good heat radiation and ground connection effect so fit in heat radiation film 130 with reflector plate.
Second embodiment
Please refer to Fig. 4, it illustrates the schematic diagram of the backlight module 200 of second embodiment of the invention.Backlight module 100 differences of the backlight module 200 of present embodiment and first embodiment are that the surface of backboard 220 has depression 221,222, and depression 221 is adjacent to lateral openings 111a, 111b at the bottom of 222 adjacent grooves that cave in, and all the other something in common no longer repeat.
For the shape of clearer depression 221 and 222, please be simultaneously with reference to Fig. 4 and Fig. 5, Fig. 5 illustrates the backboard 220 of Fig. 4 and the stereogram of heat radiation film 130.As shown in Figure 5, depression 221,222 is the recessed surface of strip.
Below, describe the process that lamp source group 140 is inserted in storage tank 111 in detail more with several schematic diagrames.Please refer to Fig. 6 A～Fig. 6 D, its lamp source group 140 that Fig. 4 is shown is inserted in the schematic diagram of the process of storage tank 111.
As shown in Figure 6A, lamp source group 140 be positioned at storage tank 111 outside, and be not inserted in as yet in the storage tank 111.
Shown in Fig. 6 B, the operator inserts storage tank 111 by lateral openings 111a with lamp source group 140, and lamp source group 140 arrives at the depression 221 of contiguous lateral openings 111a at this moment.Just cave in 221 with regard to the relation of heat radiation film 130, depression 221 by the surface of backboard 220 towards storage tank 111 outside recessed depth D 221 greater than the thickness D131 of first end 131 of the film 130 that dispels the heat.And the first whole ends 131 is attached in the depression 221 (as shown in Figure 5).So, be inserted in the process of storage tank 111 in lamp source group 140, when lamp source group 140 abuts to the position of depression, lamp source group 140 will keep a preset distance D21 with first end 131 of heat radiation film 130.Thus, lamp source group 140 can not touch first end 131 of heat radiation film 130, more heat radiation film 130 can not started or displacement.
Shown in Fig. 6 C, this moment, lamp source group 140 arrived at the depression 222 of 111b at the bottom of the adjacent grooves.In lamp source group 140 during near the bottom land 111b of storage tank 111 and since another depression 222 by the surface of backboard 220 towards storage tank 111 outside recessed depth D 222 greater than the thickness D132 of second end 132 of the film 130 that dispels the heat.And the second whole ends 132 is attached in the depression 222 (please refer to Fig. 5).So, arriving at depression at 222 o'clock in lamp source group 140, lamp source group 140 will keep a preset distance D22 with second end 132 of heat radiation film 130.Thus, lamp source group 140 can not touch second end 132 of heat radiation film 130, more heat radiation film 130 can not started or displacement.
Shown in Fig. 6 D, when lamp source group 140 was inserted in storage tank 111 fully, lamp source group 140 was resisted against butting section 112, so that lamp source group 140 is close towards heat radiation film 130, and fitted with heat radiation film 130.
The lamp source group 140 of present embodiment detaches in the process of storage tank 111 then opposite with the explanation of above-mentioned Fig. 6 A～Fig. 6 D.In the process that lamp source group 140 detaches, lamp source group 140 can not touch first end 131 and second end 132 of heat radiation film 130, more heat radiation film 130 can not started or displacement.
Disclosed backlight module of the above embodiment of the present invention and assemble method thereof have multiple advantages, below only enumerate the part advantage and are described as follows:
The first, for the lobed surface of backboard, the height that projection is protruded by the surface of backboard is greater than the thickness of first end of heat radiation film, and projection is between first end and lateral openings.So, being inserted in the process of storage tank in lamp source group, lamp source group at first abuts to projection, and is propped up the height of projection, makes lamp source group and first end of heat radiation film keep a preset distance.Thus, lamp source group can not touch first end of heat radiation film, more the heat radiation film can not started or displacement.
The second, for the lobed surface of backboard, the height that another projection is protruded by the surface of backboard is greater than the thickness of second end of heat radiation film, and this projection is between second end and bottom land.So, being bordering in the process of bottom land of storage tank in the winding of lamp source, lamp source group at first abuts to projection, and is propped up the height of projection.Make lamp source group and second end of heat radiation film keep a preset distance.Thus, lamp source group can not touch second end of heat radiation film, more the heat radiation film can not started.
Three, when lamp source group was inserted the bottom land of storage tank, lamp source group was resisted against the butting section, so that lamp source group is close towards the heat radiation film, and film adhered with heat radiation.
Four, for the lobed surface of backboard, the lower plate of lamp source group has two grooves, and the groove of lamp source group is corresponding to the projection of backboard.Thus, when lamp source group was resisted against the butting section, lamp source group can be successfully close towards the heat radiation film, and film adhered with heat radiation.
When five, lamp source group was closely fitted with the heat radiation film, the heat energy of lamp source group can waltz through the heat radiation film and conduct on the backboard, to reach the effect of heat radiation.
Six, backboard and heat radiation film more can have electric conductivity.When lamp source group was closely fitted with the heat radiation film, heat radiation film and backboard more can be used as the earth terminal of lamp source group.
When seven, being CCFL as if light-emitting component, lamp source group often more comprises a reflector plate, and reflector plate is in order to reflection ray.Reflector plate is arranged at lamp source group and regards to the backboard part, for example the lower plate of lamp source group.When lamp source group was inserted the bottom of storage tank, reflector plate was film adhered with heat radiation.Because reflector plate generally also is a metal material, can reach good heat radiation and ground connection effect so fit in the heat radiation film with reflector plate.
Eight, for the surface that backboard has depression, depression by the surface of backboard the recessed degree of depth greater than the thickness of first end of heat radiation film.And the first whole ends are attached in the scope of depression.So, be inserted in the process of storage tank in lamp source group, when lamp source group abutted to the position of depression, lamp source group kept a preset distance with first end of heat radiation film.Thus, lamp source group can not touch first end of heat radiation film, more the heat radiation film can not started.
Nine, the surface that has depression with backboard, another depression by the surface of backboard the recessed degree of depth greater than the thickness of second end of heat radiation film.And the second whole ends are attached in the scope of depression.So, be bordering in the process of bottom land of storage tank in the winding of lamp source, when lamp source group arrived at depression, lamp source group kept a preset distance with second end of heat radiation film.Thus, lamp source group can not touch second end of heat radiation film, more the heat radiation film can not started.
In sum, though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.The technical field of the invention technical staff without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention attached claim person of defining before looking is as the criterion.
Claims (6)
1. a backlight module is characterized in that, this backlight module comprises:
One framework;
One backboard, it is arranged at the offside of this framework, forms a storage tank with this framework, and this storage tank has a lateral openings, and this backboard has at least one raised or sunken, this raised or sunken this lateral openings that is adjacent to;
One heat radiation film, it is attached on this backboard, and this heat radiation film has one first end and one second end, contiguous this lateral openings of this first end, this second end is away from this lateral openings; And
One lamp source group, it inserts or detaches in this storage tank from this lateral openings;
Wherein when this lamp source group is inserted this storage tank by this lateral openings, keep a preset distance by this raised or sunken this lamp source group and this first end of making, when this lamp source group was inserted this storage tank, this lamp source group and this heat radiation were film adhered;
This framework has a butting section, protrude from this storage tank, and be away from this lateral openings, and this butting section is positioned at the offside of this backboard in fact, when this lamp source group is inserted the bottom of this storage tank, this lamp source group against this butting section so that this lamp source group and this heat radiation are film adhered;
If this backboard has at least one projection, this projection by the surface of this backboard towards height that this storage tank protruded thickness greater than this first end of this heat radiation film, and should projection between this first end and this lateral openings; This storage tank has the bottom land with respect to this lateral openings, and this backboard has two projectioies, is arranged at contiguous this lateral openings part and contiguous this bottom land part respectively; This lamp source group comprises a lower plate, and this lower plate has two grooves this two projection corresponding to this backboard;
If this backboard has at least one depression, this depression by the surface of this backboard towards this storage tank outside the recessed degree of depth greater than the thickness of this first end of this film that dispels the heat, and this first end is attached in this depression; This storage tank has the bottom land with respect to this lateral openings, and this backboard has two depressions, is arranged at contiguous this lateral openings part and contiguous this bottom land part respectively; This depression is for strip, so that this whole first end of this heat radiation film all is attached in this depression.
2. backlight module as claimed in claim 1 is characterized in that, this projection is circular raised surface.
3. backlight module as claimed in claim 1 is characterized in that, this backboard and this heat radiation film have electric conductivity.
4. backlight module as claimed in claim 1 is characterized in that the material of this heat radiation film comprises metal.
5. backlight module as claimed in claim 1 is characterized in that, this lamp source group comprises:
One reflector plate, when this lamp source group was inserted this storage tank, this reflector plate and this heat radiation were film adhered.
6. the assemble method of a backlight module comprises:
One framework, a backboard, a heat radiation film and a lamp source group are provided, this backboard is arranged at the offside of this framework, form a storage tank with this framework, this storage tank has a lateral openings, and this backboard has at least one raised or sunken, this raised or sunken this lateral openings that is adjacent to, this heat radiation film is attached on this backboard, this heat radiation film has one first end and one second end, contiguous this lateral openings of this first end, and this second end is away from this lateral openings;
Insert this lamp source group in this storage tank by this lateral openings, keep a preset distance by this raised or sunken this first end of this lamp source group and this heat radiation film that makes;
This framework has a butting section, and it protrudes from this storage tank, and is away from this lateral openings, in the step of this insertion, when this lamp source group is inserted this storage tank, this lamp source group against this butting section so that this lamp source group and this heat radiation are film adhered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008101313633A CN100572894C (en) | 2008-08-11 | 2008-08-11 | Backlight module and assemble method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008101313633A CN100572894C (en) | 2008-08-11 | 2008-08-11 | Backlight module and assemble method thereof |
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| Publication Number | Publication Date |
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| CN101338869A CN101338869A (en) | 2009-01-07 |
| CN100572894C true CN100572894C (en) | 2009-12-23 |
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| CNB2008101313633A Expired - Fee Related CN100572894C (en) | 2008-08-11 | 2008-08-11 | Backlight module and assemble method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620182B (en) * | 2011-04-28 | 2014-04-23 | 深圳市华星光电技术有限公司 | Backlight module and coating mode for backboard of backlight module |
| US8752997B2 (en) | 2011-04-28 | 2014-06-17 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and method for coating a thermal conducting material on the backlight module |
| CN102588908A (en) * | 2012-03-13 | 2012-07-18 | 深圳市华星光电技术有限公司 | Combined back plate and backlight module using same |
| CN102661556A (en) * | 2012-05-30 | 2012-09-12 | 深圳市华星光电技术有限公司 | Backlight module |
| CN108957854A (en) * | 2018-07-26 | 2018-12-07 | 武汉华星光电技术有限公司 | A kind of backlight module and display device |
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