CN202140908U - Direct illumination-type backlight module - Google Patents
Direct illumination-type backlight module Download PDFInfo
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- CN202140908U CN202140908U CN201120213203U CN201120213203U CN202140908U CN 202140908 U CN202140908 U CN 202140908U CN 201120213203 U CN201120213203 U CN 201120213203U CN 201120213203 U CN201120213203 U CN 201120213203U CN 202140908 U CN202140908 U CN 202140908U
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- backlight module
- type backlight
- direct type
- aligning structure
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Abstract
The utility model provides a direct illumination-type backlight module (4), which comprises a plurality of lamp sources (44), a diffusion board (45), a brightness enhancing film (47) and a backboard unit (43). The diffusion board comprises a plane of emitting light and a plane of light incidence. The plane of light incidence and the plane of emitting light are respectively arranged on the two corresponding surfaces of the diffusion board. The lamp sources and the backboard unit are arranged on the plane of light incidence of the diffusion board. The backboard unit is used for accommodating the lamp sources. The brightness enhancing film is arranged on the plane of emitting light of the diffusion board. The direct illumination-type backlight module further comprises a plurality of contraposition structures (431) and the contraposition structures are arranged on the inner side surface of the backboard unit. Each contraposition structure arranged corresponding to one lamp source is adjacent to the lamp source.
Description
Technical field
The utility model is about a kind of backlight module, particularly about a kind of assembling location in lamp source, direct type backlight module of aligning structure of increasing.
Background technology
In recent years; Traditional cathode-ray tube display (CRT monitor that promptly is commonly called as) is replaced by LCD gradually; Main cause is that the amount of radiation that LCD discharges is far smaller than CRT monitor; In addition, LCD is in the existing significantly reduction of this manufacturing cost in several years, and this also is the reason that LCD becomes the TV or the computer screen market mainstream gradually.
LCD can be divided into liquid crystal panel and backlight module two major parts, and backlight module can use direct type backlight module or side type backlight module according to the size dimension of screen respectively usually.Please with reference to Fig. 1, shown in Figure 1ly be the relative position sketch map of convention direct type backlight module.As shown in Figure 1, bottom-lighting type back light module 1 includes a plurality of lamps source 14, a diffuser plate 15, a diffusion barrier 16, a brightness enhancement film 17 and a backboard unit 13.Wherein, those lamp sources 14 and backboard unit 13 are arranged at the downside of diffuser plate 15, and backboard unit 13 can be in order to ccontaining those lamp sources 14; At this, lamp source 14 is that (Cold Cathode Fluorescent Lamp, CCFL), it is in order to launching visible light, and is used for illumination for cathode fluorescent tube.Diffusion barrier 16 and brightness enhancement film 17 all are positioned at the upper side of diffuser plate 15, and diffusion barrier 16 is arranged between diffuser plate 15 and the brightness enhancement film 17.Backboard unit 13 includes a frame body 133, a plurality of hole 1333 and a plurality of joining rack 135, and those holes 1333 are positioned on the frame body 133, and joining rack 135 can be corresponding with hole 1333 and be plugged to hole 1333.
Come again, please consult Fig. 1 ~ Fig. 2 simultaneously, shown in Figure 2ly be the assembling sketch map of convention direct type backlight module.Like Fig. 1 and shown in Figure 2; Earlier a plurality of joining racks 135 are plugged to hole 1333, make joining rack 135 be fixed on the upper side of frame body 133 firmly, a plurality of lamps source 14 is set up be fixed on the joining rack 135 again; So; The combination that sees through joining rack 135 is fixed, and lamp source 14 is firmly combined with the frame body 133 of backboard unit 13, can not produce the situation of rocking, coming off.
Yet the composition assembly of backboard unit 13 is too much, and assembling is longer man-hour, and joining rack 135 has temperature distortion to cause the problem of 14 displacements of lamp source, optics taste reduction easily; And problems such as the die sinking of joining rack 135, manufacturing, product yield, damage maintenance also are the main causes that causes financial cost further to descend.
Therefore, how to reduce the number of parts of backboard unit 13, simplify its assembling flow path and man-hour, in order to the whole yield and the reduction manufacturing cost that promote straight backlight module 1 down further, this is that this area has the target that common knowledge the knowledgeable makes great efforts.
Summary of the invention
The utility model main purpose is to reduce the number of parts of backboard unit, simplifies its assembling flow path and man-hour.
Another purpose of the utility model is further to promote the whole yield of straight backlight module down and reduce manufacturing cost.
In order to reach above-mentioned purpose, the utility model provides a kind of direct type backlight module, and it includes a plurality of lamps source, a diffuser plate, a brightness enhancement film and a backboard unit; Diffuser plate includes an exiting surface and an incidence surface; Incidence surface and exiting surface lay respectively at the corresponding two sides of diffuser plate, and those lamp sources and backboard unit are arranged at the incidence surface side of diffuser plate, and the backboard unit is in order to ccontaining those lamp sources; Brightness enhancement film is arranged at the exiting surface side of diffuser plate; Direct type backlight module includes a plurality of aligning structure further, and those aligning structure are arranged at backboard unit inside face, and each aligning structure is adjacent with the corresponding setting in a lamp source.
Aforesaid direct type backlight module, wherein, the circumferential outer edge of each aligning structure is corresponding with the circumferential outer edge in a lamp source.
Aforesaid direct type backlight module, wherein, aligning structure protrusion or be recessed into the backboard unit.
Aforesaid direct type backlight module, wherein, each aligning structure has included at least one anchor point, and each lamp source has included hole, at least one location, and when aligning structure and lamp source were adjacent, anchor point was positioned at the hole, location; And anchor point is positioned at the hole, location and is the tight fit state.
Aforesaid direct type backlight module, wherein, each aligning structure has included hole, at least one location, and each lamp source has included at least one anchor point, and when aligning structure and lamp source were adjacent, anchor point was positioned at the hole, location; And anchor point is positioned at the hole, location and is the tight fit state.
Aforesaid direct type backlight module, wherein, each aligning structure has included a joint storage tank, and each lamp source has included an electric connection, and when aligning structure and lamp source were adjacent, electric connection was positioned at the joint storage tank.
Aforesaid direct type backlight module; Wherein, a plurality of lamps are connected by at least one syndeton between the source, are connected by at least one holding channel between a plurality of aligning structure; When a plurality of lamps source was abutted to a plurality of aligning structure, syndeton was positioned at holding channel.
Aforesaid direct type backlight module, wherein, direct type backlight module more includes a diffusion barrier, and diffusion barrier is arranged between brightness enhancement film and the diffuser plate.
By this, the described direct type backlight module of the utility model can reduce the number of parts of backboard unit, simplifies the assembling flow path and the man-hour of direct type backlight module, in order to its whole yield of further lifting and reduce manufacturing cost.
Be familiar with purpose, characteristic and the effect that a skill personage understands the utility model for making, now by following specific embodiment, and cooperate appended graphic, to the utility model explain in detail as after.
Description of drawings
Shown in Figure 1 for the relative position sketch map of convention direct type backlight module.
Shown in Figure 2 for the assembling sketch map of convention direct type backlight module.
Shown in Figure 3 is the sketch map of the direct type backlight module of the utility model first embodiment.
Shown in Figure 4 is the sketch map of the direct type backlight module of the utility model second embodiment.
Shown in Figure 5 is the sketch map of the direct type backlight module of the utility model the 3rd embodiment.
Shown in Figure 6 is the sketch map of the direct type backlight module of the utility model the 4th embodiment.
Identifier declaration
1: direct type backlight module
13: the backboard unit
133: frame body
1333: hole
135: joining rack
14: the lamp source
15: diffuser plate
16: diffusion barrier
17: brightness enhancement film
3,4,5,6: direct type backlight module
33,43,53,63: the backboard unit
331,431,531,631: aligning structure
332,532: holding channel
438,638: the joint storage tank
439,639: anchor point
34,44,54,64: the lamp source
448,648: electric connection
449,649: the hole, location
541: syndeton
35,45,55,65: diffuser plate
35A: exiting surface
35B: incidence surface
36,46,56,66: diffusion barrier
37,47,57,67: brightness enhancement film.
The specific embodiment
See also Fig. 3, shown in Figure 3 is the sketch map of the direct type backlight module of the utility model first embodiment.As shown in Figure 3, bottom-lighting type back light module 3, it includes a plurality of lamps source 34, a diffuser plate 35, a diffusion barrier 36, a brightness enhancement film 37 and a backboard unit 33.Wherein, diffuser plate 35 includes an exiting surface 35A and an incidence surface 35B, and exiting surface 35A is positioned at the upper side of diffuser plate 35, and incidence surface 35B is positioned at the downside of diffuser plate 35, and therefore, incidence surface 35B and exiting surface 35A lay respectively at the corresponding two sides of diffuser plate 35.Brightness enhancement film 37 is arranged at the exiting surface 35A side of diffuser plate 35, so brightness enhancement film 37 is arranged at the top of diffuser plate 35.Diffusion barrier 36 also is arranged at the top of diffuser plate 35, and diffusion barrier 36 is arranged between brightness enhancement film 37 and the diffuser plate 35, in order to mixed light, the diffusion effect that increases light further.Those lamp sources 34 and backboard unit 33 are arranged at the incidence surface 35B side of diffuser plate 35, and backboard unit 33 is in order to ccontaining those lamp sources 34.In order to improve the shortcoming of convention; Reduce the number of parts of backboard unit 33; Simplify its assembling flow path and man-hour; In order to the whole yield and reduction manufacturing cost that promote direct type backlight module 3 further, the direct type backlight module 3 of the utility model includes a plurality of aligning structure 331 further, and those aligning structure 331 are arranged at backboard unit 33 upper sides; That is those aligning structure 331 are arranged at backboard unit 33 towards the inner side of direct type backlight module 3, make each aligning structure 331 respectively with a lamp source 34 corresponding settings; So, in assembling during direct type backlight module 3, as long as with each lamp source 34 and an aligning structure 331 near, adjacency, a plurality of lamps source 34 can reach the purpose of location, arrangement fast by the calibration of those aligning structure 331, contraposition.In the present embodiment; Lamp source 34 is cathode fluorescent tube (Cold Cathode Fluorescent Lamps; CCFL), aligning structure 331 is the groove-like structure of recessed backboard unit 33, so each lamp source 34 all can place in the aligning structure 331; Except purpose, prevent the effect that lamp source 34 is become flexible, shaken in addition with quick assembling, location.In addition; Shown in the enlarged drawing of Fig. 3,34 in a plurality of lamps source can be connected by a syndeton (this figure does not illustrate), and syndeton can be soft arranging wire (the Flexible Flat Cable that electrically connects usefulness; Or install and fix the connection fixed structure of usefulness FFC); 331 of a plurality of aligning structure are connected by a holding channel 332, and holding channel 332 also is the groove-like structure, and holding channel 332 vertically connects a plurality of aligning structure 331.So, when a plurality of lamps source 34 near, when being abutted to a plurality of aligning structure 331, the syndeton in a plurality of lamps source 34 can place in the holding channel 332; Therefore holding channel 332 also has the auxiliary effect of installing, locating.By this, when a plurality of lamps source 34 is arranged in the aligning structure 331 of backboard unit 33, can penetrate light, light is up penetrated, more in regular turn through diffuser plate 35, diffusion barrier 36, brightness enhancement film 37, in order to backlight as a LCD (not illustrating).
The utility model also has other embodiment.See also Fig. 4, shown in Figure 4 is the sketch map of the direct type backlight module of the utility model second embodiment.As shown in Figure 4, direct type backlight module 4 includes a plurality of lamps source 44, a diffuser plate 45, a diffusion barrier 46, a brightness enhancement film 47 and a backboard unit 43.At this, similar structure just repeats no more.Shown in the enlarged drawing of Fig. 4, the lamp source 44 of present embodiment be light-emitting diode light bar (Light Emitting Diode, LED), a wherein end in each lamp source 44 includes hole, a location 449; Include in each aligning structure 431 one protrude from aligning structure 431 bottom lands anchor point 439.Anchor point 439 is a cylinder; Hole 449, location be a circular opening, and when aligning structure 431 and lamp source 44 were adjacent, anchor point 439 can place located in the hole 449; Therefore anchor point 439 can agree with, couple with hole 449, location mutually, reaches the auxiliary effect of installing, locating.In preferred embodiment, anchor point 439 is positioned at hole 449, location and is tight fit (interference fit) state; Also have, the circumferential outer edge in the circumferential outer edge of each aligning structure 431 and a lamp source 44, its profile, size and thickness are all roughly the same, so lamp source 44 is when placing aligning structure 431 interior, are corresponding and agree with; Even lamp source 44 is the tight fit state with aligning structure 431, so can reach better installation, positioning function.Also have, also can further be provided with an electric connection 448 (electrical connector) on each lamp source 44, electric connection 448 is in order to provide 44 1 voltages source, lamp source or electric current source; Each aligning structure 431 also can more include a joint storage tank 438.When lamp source 44 and aligning structure 431 were adjacent, electric connection 448 can be arranged in the joint storage tank 438 by agreeing with, being coupled of shape, profile, in order to installation, the location of auxiliary lamp source 44; In preferred embodiment, when being positioned at joint storage tank 438, electric connection 448 also can be the tight fit state.That is to say, in the embodiment of Fig. 4, in the time of in lamp source 44 places aligning structure 431; Anchor point 439 can agree with hole 449, location mutually; Electric connection 448 can agree with joint storage tank 438 mutually, so can significantly promote location, the contraposition effect in lamp source 44, makes things convenient for factory work personnel's installation, configuration; In order to save man-hour, reduce production costs.
See also Fig. 5, shown in Figure 5 is the sketch map of the direct type backlight module of the utility model the 3rd embodiment.As shown in Figure 5, direct type backlight module 5 includes a plurality of lamps source 54, a diffuser plate 55, a diffusion barrier 56, a brightness enhancement film 57 and a backboard unit 53.Wherein, 54 in a plurality of lamps source of present embodiment is connected by a syndeton 541, and syndeton 541 can be the connection fixed structure that electrically connects the soft arranging wire of usefulness or install and fix usefulness; 531 of a plurality of aligning structure are connected by a holding channel 532.When a plurality of lamps source 54 in abutting connection with, near to a plurality of aligning structure 531 time, a plurality of lamps source 54 can be arranged in a plurality of aligning structure 531, and syndeton 541 can be positioned at holding channel 532 simultaneously.By this, present embodiment also can be realized aforementioned effect.
See also Fig. 6, shown in Figure 6 is the sketch map of the direct type backlight module of the utility model the 4th embodiment.As shown in Figure 6, direct type backlight module 6 includes a plurality of lamps source 64, a diffuser plate 65, a diffusion barrier 66, a brightness enhancement film 67 and a backboard unit 63.Wherein, the aligning structure 631 protrusion backboard unit 63 of present embodiment, and the upper side of each aligning structure 631 also is provided with an anchor point 639 and a joint storage tank 638; The downside in each lamp source 64 also is provided with a hole, a location 649 and an electric connection 648.Therefore; When the maquila of direct type backlight module 6 is implemented assembling, can be by obviously and the aligning structure 631 of protrusion, and successfully make a plurality of lamps source 64 in abutting connection with, near to a plurality of aligning structure 631; And each lamp source 64 can see through agreeing with of hole 649, location, anchor point 639; And the agreeing with of electric connection 648, joint storage tank 638, and be positioned at like clockwork aligning structure 631 directly over, can not produce the skew or the loading error facts.
Certainly, in other embodiments, can also change the position that is provided with in anchor point, hole, location; For example: will locate the upper side that the hole is arranged at aligning structure; Anchor point is arranged at the downside in lamp source, so, when aligning structure and lamp source near, in abutting connection with the time; Anchor point can be positioned at the hole, location too, makes the assembling of lamp source and backboard unit reach the effect of contraposition, location.Also have, the number in anchor point, hole, location also can be a plurality of.
In sum; The direct type backlight module of the utility model need not the joining rack by convention, can be fast, correctly assembling lamp source and backboard unit; So can reduce the number of parts of backboard unit; Simplify the assembling flow path and the man-hour of direct type backlight module, in order to its whole yield of further lifting and reduce manufacturing cost, so have the potentiality of practicality and commercial application.
Though the utility model discloses as above with specific embodiment; Right its specific embodiment that is disclosed not is in order to limit the utility model; Anyly be familiar with this art; In spirit that does not break away from the utility model and scope, when can doing various changes and retouching, its make to change the category that all belongs to the utility model with retouching.
Claims (10)
1. a direct type backlight module (3,4,5,6), it includes a plurality of lamps source (34; 44,54,64), a diffuser plate (35,45,55; 65), a brightness enhancement film (37,47,57,67) and a backboard unit (33,43; 53,63), this diffuser plate includes an exiting surface and an incidence surface, and this incidence surface and this exiting surface lay respectively at the corresponding two sides of this diffuser plate; Those lamp sources and this backboard unit are arranged at the incidence surface side of this diffuser plate, and this backboard unit is in order to ccontaining those lamp sources, and this brightness enhancement film is arranged at the exiting surface side of this diffuser plate, it is characterized in that this direct type backlight module includes:
A plurality of aligning structure (331,431,531,631), those aligning structure are arranged at this backboard unit inside face, and each aligning structure is adjacent with the corresponding setting in a lamp source.
2. like claim 1 a described direct type backlight module, it is characterized in that the circumferential outer edge of each aligning structure is corresponding with the circumferential outer edge in a lamp source.
3. like claim 1 a described direct type backlight module, it is characterized in that those aligning structure protrusions or recessed this backboard unit.
4. like claim 1 a described direct type backlight module; It is characterized in that; Each aligning structure has included at least one anchor point (439,639); Each lamp source has included hole, at least one location (449,649), and when those aligning structure and those lamp sources were adjacent, said anchor point was positioned at hole, said location.
5. like claim 4 a described direct type backlight module, it is characterized in that said anchor point is positioned at hole, said location and is the tight fit state.
6. like claim 1 a described direct type backlight module; It is characterized in that each aligning structure has included hole, at least one location, each lamp source has included at least one anchor point; When those aligning structure and those lamp sources were adjacent, said anchor point was positioned at hole, said location.
7. like claim 6 a described direct type backlight module, it is characterized in that said anchor point is positioned at hole, said location and is the tight fit state.
8. like claim 1 a described direct type backlight module; It is characterized in that; Each aligning structure has included a joint storage tank (438,638); Each lamp source has included an electric connection (448,648), and when those aligning structure and those lamp sources were adjacent, said electric connection was positioned at said joint storage tank.
9. like claim 1 a described direct type backlight module; It is characterized in that; Be connected by at least one syndeton (541) between a plurality of lamps source; Be connected by at least one holding channel (332,532) between a plurality of aligning structure, when a plurality of lamps source was abutted to a plurality of aligning structure, said syndeton was positioned at said holding channel.
10. like claim 1 a described direct type backlight module, it is characterized in that this direct type backlight module more includes a diffusion barrier (36,46,56,66), this diffusion barrier is arranged between this brightness enhancement film and this diffuser plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120213203U CN202140908U (en) | 2011-06-23 | 2011-06-23 | Direct illumination-type backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120213203U CN202140908U (en) | 2011-06-23 | 2011-06-23 | Direct illumination-type backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140908U true CN202140908U (en) | 2012-02-08 |
Family
ID=45551966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120213203U Expired - Fee Related CN202140908U (en) | 2011-06-23 | 2011-06-23 | Direct illumination-type backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140908U (en) |
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2011
- 2011-06-23 CN CN201120213203U patent/CN202140908U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20130623 |