CN101709843A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN101709843A CN101709843A CN200910260646A CN200910260646A CN101709843A CN 101709843 A CN101709843 A CN 101709843A CN 200910260646 A CN200910260646 A CN 200910260646A CN 200910260646 A CN200910260646 A CN 200910260646A CN 101709843 A CN101709843 A CN 101709843A
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- stopper section
- light
- backlight module
- baseplate part
- emitting component
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Abstract
The invention discloses a backlight module comprising a frame component, at least one light-emitting element and a flexible base plate, wherein the flexible base plate is provided with a first base plate part and a first stop part, wherein a part of the first stop part protrudes out of the base plate part; the light-emitting elements are electrically arranged at the rear of the base plate part; the flexible base plate carrying the light-emitting elements is arranged in the frame component; and the stop part is bent an angle on the base plate part for obstructing the frame component and the light-emitting elements.
Description
Technical field
The present invention relates to a kind of backlight module, particularly a kind of backlight module of barrier structure design of tool flexible base plate.
Background technology
Known backlight liquid crystal display module is installed on the display pannel, to provide LCD required light.And in the thin type machine of notebook computer; for fear of vibrating up and down because of circuit board; and cause the soft board (FPC) between circuit board and the battery (Cell) that the disengaging situation takes place; usually can on the framework of backlight module, one year seat (Bracket) be set welding; utilize the metal structure intensity of carrying seat to fix circuit board, produce the situation of vibrations to avoid circuit board.
Yet the connected mode of carrying seat and framework by the mode of certain hyte dress, is offered a locating hole earlier on framework, carries to be convexly equipped with a positioning block, and the locating piece that utilizes tool will carry earlier is embedded the locating hole inside at framework in advance.With a welding procedure, year locating piece welding of seat in locating hole, will be carried the seat welding with this and will be arranged on the framework again.
After above-mentioned welding procedure, framework and the welding position that carries seat be residual easily welding slag, and especially at the inner surface of framework, piling up has more welding slag.When the assembly (as light emitting diode, flexible base plate or optical thin film etc.) of backlight module is installed in framework inside, the welding slag of inner surface that is piled up in framework is easily because vibrations, or because the assembly of backlight module touches the welding slag on the framework inner surface, and peel off and fall on the assembly of backlight module from the inner surface of framework.
When if welding slag drops on the contact of light emitting diode, just cause electrically conducting between light emitting diode and the framework easily.Thus, when electric current passed through the contact of light emitting diode, electric current just can be directly conducted on the framework by welding slag, caused light emitting diode to produce the situation of short circuit.
In addition, when if the scolding tin of the contact on the light emitting diode is excessive, same also can be in the process of component assembling at framework with backlight module, because the influence that the unnecessary scolding tin on the contact (being welding slag) is clashed into or rubs, and make scolding tin peel off from contact, and fall between the assembly and framework of backlight module, so also be to cause the short-circuit conditions of light emitting diode to take place.
Summary of the invention
In view of above problem, technical problem solved by the invention is to provide a kind of backlight module, drop easily between the assembly and framework of backlight module so as to solving above-mentioned welding slag, and the problem that causes being short-circuited takes place.
Backlight module disclosed according to the present invention comprises a framework, at least one light-emitting component and a flexible base plate.Wherein, framework has a loading end, and has a side wall in a side of framework, and side wall is positioned at a side of loading end.Light-emitting component is arranged on framework inside, and light-emitting component has a body and an electrical junction, and its electrical junction is outwards outstanding from body.Flexible base plate is arranged on framework inside, and comprises a baseplate part and at least one first stopper section.Its this baseplate part is positioned on the loading end, and the body of light-emitting component is disposed on the baseplate part, and light-emitting component constitutes electric connection with electrical junction and baseplate part.And the part of first stopper section protrudes in outside the baseplate part, and constitutes an angle between first stopper section and the baseplate part, makes first stopper section isolate between side wall and the light-emitting component, and makes the height of the height of first stopper section more than or equal to the electrical junction.
Structural design based on above-mentioned backlight module, because first stopper section of tool insulating property (properties) intercepts between the electrical junction of the side wall of framework and light emitting diode, the structural design of therefore above-mentioned backlight module can prevent effectively that welding slag from dropping on the electrical junction of light-emitting component, and then avoids welding slag to cause electric connection between framework and the light-emitting component.In other words, the structural design of above-mentioned backlight module can be avoided light-emitting component because the situation that welding slag causes light-emitting component to be short-circuited in light-emitting component the framework conducting.
About feature of the present invention, embodiment and effect, conjunction with figs. is described in detail as follows as most preferred embodiment now.
Description of drawings
Figure 1A is the side schematic view according to the backlight module of the first embodiment of the present invention;
Figure 1B is the side schematic view that amplifies according to the part of the backlight module of the first embodiment of the present invention;
Fig. 2 A is configured in line layer for flexible base plate according to the present invention the side schematic view of first stopper section and second stopper section;
Fig. 2 B is that flexible base plate according to the present invention is with the side schematic view of first insulating barrier as first stopper section;
Fig. 2 C is that flexible base plate according to the present invention is with the side schematic view of second insulating barrier as second stopper section;
Fig. 2 D is a flexible base plate according to the present invention with first insulating barrier and second insulating barrier side schematic view as first stopper section and second stopper section;
Fig. 2 E is configured in strengthening layer for flexible base plate according to the present invention the side schematic view of first stopper section and second stopper section;
Fig. 3 A and Fig. 3 B are that the position according to the baseplate part of the present invention and first stopper section concerns schematic diagram;
Fig. 4 A is the side schematic view of backlight module according to a second embodiment of the present invention;
Fig. 4 B is the side schematic view that amplify the part of backlight module according to a second embodiment of the present invention;
Fig. 5 A is the side schematic view of the backlight module of a third embodiment in accordance with the invention; And
Fig. 5 B is the side schematic view that amplify the part of the backlight module of a third embodiment in accordance with the invention.
Wherein, Reference numeral
100 backlight modules, 10 frameworks
11 loading ends, 12 side walls
121 connecting holes, 20 light-emitting components
21 bodies, 22 electrical junctions
30 flexible substrates, 31 baseplate parts
311 first insulating barriers, 312 line layers
313 second insulating barriers, 32 first stopper sections
33 second stopper sections, 34 strengthening layers
35 bending lines, 40 light-guide devices
50 carriages, 51 connecting portions
60 circuit boards, 70 display floaters
A, B welding position θ angle
The specific embodiment
See also shown in Figure 1A to Fig. 2 A.Wherein, Figure 1A is the side schematic view of the backlight module of the first embodiment of the present invention.Figure 1B is the side schematic view that amplify the part of circle institute frame part in the backlight module of the first embodiment of the present invention.Fig. 2 A is configured in line layer for flexible base plate according to the present invention the side schematic view of first stopper section and second stopper section.Backlight module 100 disclosed according to the present invention, it includes a framework 10, at least one light-emitting component 20 and a flexible base plate 30.
Framework 10 can be a metal material and constitutes (for example iron or aluminium are made), and framework 10 has a loading end 11, and it is in order to carry other elements, for example backlight module elements such as light-emitting component 20, flexible base plate 30 and light-guide device 40.Will be appreciated that still has other elements in the backlight module 100, since more irrelevant with the present invention, its explanation omitted at this.In addition, be provided with a side wall 12 at least one side of framework 10, and the position of side wall 12 is erected at a side of loading end 11.
Light-emitting component 20 can be light emitting diode (Light Emitting Diode, LED), EL part (Electro Luminescent, EL) or CCFL (Cold Cathode Fluorescent Lamp, CCFL).Light-emitting component 20 has a body 21 and an electrical junction 22.Electrical junction 22 is arranged on a side of body 21 and protrudes in outside the body 21.
In addition, flexible base plate 30 more comprises one second insulating barrier 313, is arranged on the line layer 312.In other words, line layer 312 is arranged between first insulating barrier 311 and second insulating barrier 313.And described first insulating barrier 311 and second insulating barrier 313 can be one the insulation plastic material make, for example be selected from resin (Thermoplastic Polyurethane, TPU), polycarbonate resin (Polycarbonate, PC), silica resin (Silicone Plastics, SP) or PETG (PolyethyleneTerephthalate, PET) any plastics are made, but, only need make win insulating barrier 311 and second insulating barrier 313 have the function that is electrically insulated and get final product not as limit.
It should be noted that especially that in the present embodiment flexible base plate 30 more includes at least one second stopper section 33, mainly the part with second insulating barrier 313 protrudes in outside the baseplate part 31, to constitute second stopper section 33.And line layer 312 can be configured in (shown in Figure 1B and Fig. 2 A) between first stopper section 32 and second stopper section 33, and makes first stopper section 32 and second stopper section 33 be bent with an angle theta with respect to baseplate part 31.
See also shown in Figure 1A again, more comprise a light-guide device 40, light-guide device 40 can be a LGP (light guide panel) or a light guiding film (light guide film).Light-guide device 40 is arranged on the baseplate part 31 of flexible base plate 30, and adjacent to the side of light-emitting component 20.In detail, the light that light-emitting component 20 is produced makes light can enter light-guide device 40 inside and carries out the light reflection towards light-guide device 40 irradiation.Be noted that a side of light-guide device 40 has a display floater 70 relatively.In the present embodiment, display floater 70 can be a display panels, and display floater 70 can be corresponding above light-guide device 40.When light-emitting component 20 after light-guide device 40 is injected light, can light be projeced into display floater 70 equably by light-guide device 40.
Moreover backlight module 100 more comprises a carriage 50, in order to placing a circuit board 60, and is arranged on an outer surface of the side wall 12 of framework 10.Carriage 50 has at least one connecting portion 51, and connecting portion 51 is outwards protruded by a side of carriage 50, and the position of side wall 12 corresponding connection parts 51 has more at least one connecting hole 121.In when assembling, carriage 50 is fixed on connecting hole 121 inside of side wall 12 with connecting portion 51, in the present embodiment, can carry out weld job between connecting portion 51 and connecting hole 121, the carriage 50 that places circuit board 60 can be welded on the side wall 12 whereby.
In addition, backlight module 100 more comprises a power supply component (not illustrating), constitutes one with circuit board 60 and electrically connects.Power supply component provides the driving chip (do not illustrate) of a power supply to circuit board 60, drives light-emitting component 20 with this and operates, and it belongs to known technology, seldom does at this and gives unnecessary details.
, the body 21 of light-emitting component 20 is arranged on the baseplate part 31 of flexible base plate 30 in group during structure by above-mentioned member, and the line layer 312 of the electrical junction 22 that makes light-emitting component 20 and baseplate part 31 constitutes mutually and electrically connects.Then, again mounting there are flexible base plate 30 1 ends of light-emitting component 20 to be assembled in framework 10 inside, make the baseplate part 31 of flexible base plate 30 be positioned on the loading end 11.
See also again shown in Figure 1A and Figure 1B, because the part of first stopper section 32 and second stopper section 33 protrudes in outside the baseplate part 31, so baseplate part 31 is mounted on framework 10 when inner, can make win stopper section 32 and second stopper section 33 along side wall 12 surfaces and bending one angle.So, making wins constitutes angle theta between stopper section 32 and second stopper section 33 and the baseplate part 31, and the best angle of this angle theta can be 90 ° of angles.And make first stopper section 32 and second stopper section 33 all between side wall 12 and light-emitting component 20, and the height of first stopper section 32 and second stopper section 33 is relatively higher than the height of the electrical junction 22 of light-emitting component 20, but not as limit.The height of its first stopper section 32 and second stopper section 33 also can be identical with the height of the electrical junction 22 of light-emitting component 20, only need make first stopper section 32 and second stopper section 33 can cover electrical junction 22 and get final product.Thus, by first stopper section 32 of bending and the structural design of second stopper section 33, form a barrier structure at the pad (being the welding position A between side wall 12 and the carriage 50) of side wall 12 and the pad of light-emitting component 20 (being the welding position B of electrical junction 22 and line layer 312).Avoid the remaining welding slag on the welding position A to drop between side wall 12 and electrical junction 22 with this, and cause light-emitting component 20 situation of short circuit to take place.
It should be noted that especially, in the present embodiment, the part of first insulating barrier 311 and second insulating barrier 313 protrudes in outside the baseplate part 31, can constitute first stopper section 32 and second stopper section 33 respectively, and between first stopper section 32 and second stopper section 33, dispose the structure (shown in Fig. 2 A) of line layer 312, but not as limit.It can also first insulating barrier 311 part protrude in outside the baseplate part 31, and only constitute the structure (shown in Fig. 2 B) of first stopper section 32, and with this first stopper section 32 as intercepting the usefulness of side wall 12 with light-emitting component 20, and then cover electrical junction 22 with first stopper section 32.
Or the part of second insulating barrier 313 (can be considered the structure identical with first insulating barrier 311) protrudes in outside the baseplate part 31, form the structure (shown in Fig. 2 C) of second stopper section 33 with this, and with this second stopper section 33 as intercepting the usefulness of side wall 12 with light-emitting component 20, and then cover electrical junction 22 with second stopper section 33.
Or be that the part of first insulating barrier 311 and second insulating barrier 313 protrudes in outside the baseplate part 31, with the structure (shown in Fig. 2 D) that forms first stopper section 32 and second stopper section 33 respectively.Be noted that, between first stopper section 32 and second stopper section 33, do not dispose any line layer 312.
In addition, shown in Fig. 2 E, flexible base plate 30 more comprises a strengthening layer 34.Strengthening layer 34 is provided with between first stopper section 32 and second stopper section 33, and makes a be separated by distance and not contacting with each other of strengthening layer 34 and line layer 312.The material of strengthening layer 34 is the material of a hard, and for example, the material of strengthening layer 34 is metals.So, by the structural design of strengthening layer 34 between first stopper section 32 and second stopper section 33, can make win stopper section 32 and 33 certain being erected between side wall 12 and the light-emitting component 20 of second stopper section.Be noted that, be separated with a distance mutually between strengthening layer 34 and the line layer 312, can be beneficial to first stopper section 32 and second stopper section 33 bends in this distance.
Moreover; in order to make the bending angle of first stopper section 32 more obvious; above-mentioned flexible base plate 30 has more a bending line 35 (shown in Fig. 3 A or Fig. 3 B); this bending line 35 is between the baseplate part 31 and first stopper section 32; thus; just can be through the bending degree of bending line 35 easier adjustment first stopper section 32, with the angle theta of guaranteeing to constitute between the baseplate part 31 and first stopper section 32.Be noted that above-mentioned bending line 35 also can be between the baseplate part 31 and second stopper section 33.
In addition, first stopper section 32 can be the structure (as shown in Figure 3A) of single lamellar body.When bending, first stopper section 32 can be covered these light-emitting components 20 simultaneously.Or first stopper section 32 is designed to the structure (shown in Fig. 3 B) of a plurality of lamellar bodies, make these first stopper sections 32 be spaced a side respectively at baseplate part 31, and each first stopper section 32 should have a light-emitting component 20 all relatively, and makes the size of each first stopper section 32 can cover the electrical junction 22 of corresponding light-emitting component 20.When bending, intercept between the light-emitting component 20 and side wall 12 of correspondence with separately first stopper section 32.Be noted that the structure of second stopper section 33 also can be designed to the structure as first stopper section 32 among Fig. 3 A or Fig. 3 B.
See also shown in Fig. 4 A and Fig. 4 B, wherein, Fig. 4 A is the side schematic view of backlight module according to a second embodiment of the present invention.Fig. 4 B is the side schematic view that amplify the part of backlight module according to a second embodiment of the present invention.
In Fig. 4 A and Fig. 4 B, constitute between first stopper section 32 and the baseplate part 31 and be about 90 ° angle, intercept between side wall 12 and light-emitting component 20 with this first stopper section 32, and the weld locations place (being the welding position A between side wall 12 and the carriage 50) that first stopper section 32 is extended upwardly to cover side wall 12.Be noted that, second stopper section 33 also can and baseplate part 31 between constitute and to be about 90 ° angle, and extend upwardly to the weld locations place of covering side wall 12.
See also shown in Fig. 5 A and Fig. 5 B, wherein, Fig. 5 A is the side schematic view of the backlight module of a third embodiment in accordance with the invention.Fig. 5 B is the side schematic view that amplify the part of the backlight module of a third embodiment in accordance with the invention.
In Fig. 5 A and Fig. 5 B, constitute angle between first stopper section 32 and the baseplate part 31 less than 90 °, with this first stopper section 32 is enveloped the electrical junction 22 of light-emitting component 20, and intercept between side wall 12 and light-emitting component 20.Be noted that, second stopper section 33 also can and baseplate part 31 between constitute angle less than 90 °, and envelope the electrical junction 22 of light-emitting component 20.
In sum, according to the backlight module of the above embodiments as can be known, this backlight module is extruded with first stopper section of insulating property (properties) on the baseplate part of flexible base plate, and, the stopper section of winning is intercepted between the electrical junction of the side wall of framework and light-emitting component with this first stopper section bending one angle on baseplate part.Residual welding slag with the pad (being the welding position between side wall and the carriage) of avoiding side wall drops on the electrical junction of light-emitting component, and make and electric connection between welding slag conducting light-emitting component and the framework take place with this short-circuit conditions that reduces light-emitting component.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. a backlight module is characterized in that, includes:
One framework has a loading end, and a side of this framework has a side wall, and this side wall is positioned at a side of this loading end;
At least one light-emitting component is arranged on this framework inside, and this light-emitting component has a body and an electrical junction, and this electrical junction is outstanding outside this body from this body; And
One flexible base plate, be arranged on this framework inside, and comprise a baseplate part and at least one first stopper section, this baseplate part is positioned on this loading end and for this body and is disposed on this baseplate part, this electrical junction electrically is arranged on this baseplate part, the part of this first stopper section protrudes in outside this baseplate part, and constitute an angle between this first stopper section and this baseplate part, make this first stopper section isolate between this side wall and this light-emitting component, and the height of this first stopper section is more than or equal to the height of this electrical junction.
2. backlight module according to claim 1, it is characterized in that, this baseplate part includes one first insulating barrier and a line layer in addition, this line layer is configured on this first insulating barrier and with this electrical junction and electrically connects mutually, the part of this first insulating barrier protrudes in outside this baseplate part, to constitute this first stopper section.
3. backlight module according to claim 2, it is characterized in that, this baseplate part comprises one second insulating barrier in addition, this line layer is arranged between this first insulating barrier and this second insulating barrier, the part of this second insulating barrier protrudes in outside this baseplate part, to constitute one second stopper section, this second stopper section isolates between this side wall and this light-emitting component, and the height of this second stopper section is more than or equal to the height of this electrical junction.
4. backlight module according to claim 3 is characterized in that this backlight module includes a strengthening layer in addition, is configured between this first stopper section and this second stopper section.
5. backlight module according to claim 1 is characterized in that this backlight module also comprises a light-guide device, is arranged on this baseplate part and adjacent to this light-emitting component.
6. backlight module according to claim 5 is characterized in that, this light-guide device can be a LGP or a light guiding film.
7. backlight module according to claim 1 is characterized in that this backlight module also comprises a carriage, in order to place a circuit board, this carriage has at least one connecting portion, and this side wall then has at least one connecting hole, this carriage with this connecting portion winding in this connecting hole of this side wall.
8. backlight module according to claim 1 is characterized in that, this backlight module also includes a plurality of these first stopper sections, and respectively this stopper section is spaced the side in this baseplate part.
9. backlight module according to claim 1 is characterized in that, this angle that constitutes between this first stopper section and this baseplate part is 90 ° of angles.
10. backlight module according to claim 1 is characterized in that, this first stopper section envelopes this electrical junction of this light-emitting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102606462A CN101709843B (en) | 2009-12-18 | 2009-12-18 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102606462A CN101709843B (en) | 2009-12-18 | 2009-12-18 | Backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101709843A true CN101709843A (en) | 2010-05-19 |
| CN101709843B CN101709843B (en) | 2012-04-04 |
Family
ID=42402643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102606462A Expired - Fee Related CN101709843B (en) | 2009-12-18 | 2009-12-18 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101709843B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637386A (en) * | 2011-12-30 | 2012-08-15 | 友达光电股份有限公司 | Display device |
| CN104251420A (en) * | 2013-06-28 | 2014-12-31 | Lg伊诺特有限公司 | Lighting unit |
| TWI497012B (en) * | 2013-06-24 | 2015-08-21 | Young Lighting Technology Inc | Light source module |
| CN110286523A (en) * | 2019-06-28 | 2019-09-27 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2009
- 2009-12-18 CN CN2009102606462A patent/CN101709843B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637386A (en) * | 2011-12-30 | 2012-08-15 | 友达光电股份有限公司 | Display device |
| TWI497012B (en) * | 2013-06-24 | 2015-08-21 | Young Lighting Technology Inc | Light source module |
| CN104251420A (en) * | 2013-06-28 | 2014-12-31 | Lg伊诺特有限公司 | Lighting unit |
| CN110286523A (en) * | 2019-06-28 | 2019-09-27 | 京东方科技集团股份有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101709843B (en) | 2012-04-04 |
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Granted publication date: 20120404 Termination date: 20201218 |