CN201568905U

CN201568905U - Light guide plate combined structure and backlight module provided with same

Info

Publication number: CN201568905U
Application number: CN2009202917787U
Authority: CN
Inventors: 张俊彬; 温明晃
Original assignee: Solid State Opto Ltd
Current assignee: Solid State Opto Ltd
Priority date: 2009-12-11
Filing date: 2009-12-11
Publication date: 2010-09-01
Anticipated expiration: 2019-12-11

Abstract

The utility model relates to a light guide plate combined structure and a backlight module provided with the same. The light guide plate combined structure comprises a plurality of light guide plates, and each light guide plate comprises a light-emitting surface, a wedge-shaped bottom surface, a first side surface and a second side surface, wherein the wedge-shaped bottom surface is inclined at an angle corresponding to the light-emitting surface, the first side surface is abutted on one side of the bottom surface, a clamping groove which is opened towards the first side surface is formed on one side of the first side surface adjacent to the light-emitting surface, the second side surface is abutted on the other side of the bottom surface and extends out from the bottom surface to form a raised part; the light-emitting units are arranged on the first side surfaces of the light guide plates and face to the first side surfaces to emit light, and the light is transferred to the second side surface along the interior of each light guide plate; and by correspondingly inlaying the raised part of each light guide plate in the clamping groove of the adjacent light guide plate, the light can be transferred in the combined light guide plates. The light guide plate combined structure has the benefit that the integral body thereof is firmer and more compact.

Description

LGP combining structure and backlight module with this LGP combining structure

Technical field

The utility model relates to a kind of backlight module, relates in particular to a kind of combining structure of LGP of backlight module.

Background technology

Cooperate and consult Fig. 1, be the combination schematic diagram of LGP in the prior art 10.Those LGPs 10 include an incidence surface 12, an exiting surface 16 and a side 18.This incidence surface 12 is to use for a light to enter this LGP 10, and this incidence surface 12 is adjacent to one of this exiting surface 16 side and is formed with a groove 14.This side 18 is to be adjacent to this exiting surface 16, and parallels with this incidence surface 16, and the width of this side 18 is the equal in length that are adjacent to this exiting surface 16 of plan range of this incidence surface 12 with this groove 14.

When actual assembled, it is repeatedly to place on the groove 14 of contiguous LGP 10 that those LGPs 10 have one of this side 18 side, and this side 18 is smooth to be adjacent to the plane of this exiting surface 16 in this groove 14, makes that the exiting surface 16 of adjacent LGP 10 is positioned on the identical plane.

Yet because the binding face of this first side 14 and this second side 18 do not carry out cemented or fixes, thus this utilizations repeatedly the LGP 10 that is spliced of the mode of putting is also insecure, and produce finedraw because of the vibrations in the process of transporting easily.When light enters those LGPs 10 by this incidence surface 12, those finedraws will produce the situation of light leak, make and penetrate between the finedraw of light by those LGPs 10, cause the backlight module that uses those LGPs 10 to produce a tangible bright line, and then cause whole backlight module to produce the problem of brightness disproportionation, and make the utilization rate of light descend.

Summary of the invention

The utility model technical issues that need to address have provided a kind of LGP combining structure, are intended to solve the above problems;

The utility model also provides a kind of backlight module with this LGP combining structure.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

LGP combining structure of the present utility model is to be applied to a backlight module, and this backlight module includes a backboard, a plurality of luminescence unit and LGP combination; This LGP combination includes a plurality of LGPs, and those LGPs are to be arranged on this backboard, and respectively this LGP comprises: an exiting surface; Also comprise: become a basal surface of wedge-like with this exiting surface angle that tilts; Be adjacent to one first side of one of this basal surface side, and this first side is adjacent to the draw-in groove that one of this exiting surface side is formed with this first lateral opening on one day; And one second side that is adjacent to the opposite side of this basal surface, and stretch out by this basal surface and to be formed with a protuberance; Those luminescence units are first sides that are arranged at those LGPs, and emit beam towards this first side, and this light is along this LGP internal delivery to the second side respectively; And the draw-in groove of the protuberance by chimeric respectively this LGP accordingly and contiguous LGP, make this light be able to transmission in this LGP combination;

Backlight module of the present utility model comprises: a backboard; One LGP combining structure; A described LGP combining structure includes a plurality of LGPs, and those LGPs are arranged on this backboard, and respectively this LGP comprises: an exiting surface; Become a basal surface of wedge-like with this exiting surface angle that tilts; Be adjacent to one first side of one of this basal surface side, and this first side is adjacent to the draw-in groove that one of this exiting surface side is formed with this first lateral opening on one day; Be adjacent to one second side of the opposite side of this basal surface, and be formed with a protuberance, respectively the protuberance of this LGP is corresponding chimeric with the draw-in groove of contiguous LGP; And a plurality of luminescence units; Described a plurality of luminescence unit is this first side that is arranged at those LGPs, and emit beam towards this first side, this light be along those LGP internal delivery to this second side, and those LGPs by tabling make this light be able to transmit in adjacent LGP.

Compared with prior art, the beneficial effects of the utility model are: see through chimeric mode to splice those LGPs, form the LGP that forms compared to the repeatedly mode of putting that prior art is described, its integral body is more firm, and can avoid causing exiting surface tangible bright line to occur because of the splicing defective tightness.

Description of drawings

Fig. 1 is the combination schematic diagram of LGP in the prior art;

Fig. 2 is the stereogram of the LGP combination of the utility model first embodiment;

Fig. 3 is the cutaway view of the LGP combination of the utility model first embodiment;

Fig. 4 is the three-dimensional exploded view of the backlight module of the utility model first embodiment;

Fig. 5 is the side view of the backlight module of the utility model first embodiment;

Fig. 6 is the stereogram of the LGP of the utility model second embodiment;

Fig. 7 is the splicing schematic diagram of the LGP of the utility model second embodiment.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

Described in view of prior art, one of the utility model purpose is to provide a kind of LGP combination.

Another purpose of the utility model is to provide a kind of backlight module with above-mentioned LGP combination.

For reaching above-mentioned purpose, the utility model provides a kind of LGP combination, and this LGP combination is to be applied to a backlight module, and this backlight module includes a backboard, LGP combination and a plurality of luminescence unit.This LGP combination includes a plurality of LGPs, and those LGPs are to be arranged on this backboard, and respectively this LGP includes an exiting surface, a basal surface, one first side, and one second side.This basal surface is to become wedge-like with this exiting surface angle that tilts; This first side is to be adjacent to one of this basal surface side, and this first side is adjacent to the draw-in groove that one of this exiting surface side is formed with this first lateral opening on one day.This second side is the opposite side that is adjacent to this basal surface, and is formed with a protuberance.

Wherein those luminescence units are first sides that are arranged at those LGPs, and emit beam towards those first sides, and this light is along this LGP internal delivery to the second side respectively; And the draw-in groove of the protuberance by chimeric respectively this LGP accordingly and contiguous LGP, make this light be able to transmission in this LGP combination.

In addition, the utility model more provides a kind of backlight module, and this backlight module comprises a backboard, LGP combination and a plurality of luminescence unit.This LGP combination is to include a plurality of LGPs, and those LGPs are to be arranged on this backboard, and respectively this LGP includes an exiting surface, a basal surface, one first side and one second side.This basal surface is to become wedge-like with this exiting surface angle that tilts; This first side is to be adjacent to one of this basal surface side, and this first side is adjacent to the draw-in groove that one of this basal surface side is formed with this first lateral opening on one day.This second side is the opposite side that is adjacent to this basal surface, and is formed with a protuberance, and respectively the protuberance of this LGP is corresponding chimeric with the draw-in groove of contiguous LGP.Those luminescence units are these first sides that are arranged at those LGPs, and emit beam towards this first side, and this light is to this second side along this LGP internal delivery respectively; And those LGPs by tabling, make this light be able in adjacent LGP, transmit.

Cooperate and consult Fig. 2 and Fig. 3, be respectively the stereogram and the cutaway view of the LGP combination of the utility model.This LGP is to use in a backlight module inside, mainly in order to guide the direction of light, so that liquid crystal indicator even brightness light source to be provided.This LGP combination includes a plurality of LGPs 100, and respectively this LGP 100 includes one first side 102, an exiting surface 104, one second side 106 and a basal surface 108.This basal surface 108 is to become wedge-like with this exiting surface 104 inclinations one angle.This first side 102 is to be adjacent to one of this basal surface 108 side, and this first side 102 is adjacent to the draw-in groove 103 that one of this exiting surface 104 side is formed with these first side, 104 openings on one day; This second side 106 is the opposite sides that are adjacent to this basal surface 108, and this basal surface 108 is to stretch out to be formed with a protuberance 107.

Respectively the draw-in groove 103 of this LGP 100 includes one and roughly is adjacent to this second surface 112 with second surface 112, that these basal surface 108 parallel first surfaces 110, are approximately perpendicular to this first surface 110 and towards the 3rd surface 114 of this first surface 110, and the 4th surface 116 that is adjacent to the 3rd surface 114 and parallels with this first side 102.

When actual assembled, respectively the protuberance 107 of this LGP 100 is the second surfaces 112 that are resisted against contiguous LGP 100, respectively second side 106 of this LGP 100 is smooth in the 4th surface 116 of contiguous LGP 100, and respectively the basal surface 108 of this LGP 100 fits with the first surface 110 of the LGP 100 of vicinity.

First side 102 of this LGP 100 is to be provided with a luminescence unit 200, and this luminescence unit 200 is to emit beam towards this first side 102.See through those corresponding chimeric protuberances 107 and draw-in groove 103, this LGP combination is engaged closely, avoid light to spill and produce bright line, cause the problem of liquid crystal indicator brightness disproportionation by the joint of those LGPs 100.

Respectively this LGP 100 is to utilize the not material of extinction, as: polymethyl methacrylate (Polymethylmethacrylate, PMMA), synthetic resin, propylene (acryl), Merlon (Polycarbonate, PC), polyester (Polyethylene terephthalate, PET), polyolefin (Polyolefines) or glass, the smooth plate that is made in the mode of ejection formation.And respectively the basal surface 108 of this LGP 100 is provided with high reflection of a plurality of uses and the light element (not shown) made of light absorbent not, and the size of those light elements, arrangement mode are neither identical.When light was mapped to light element, reverberation can be derived by the exiting surface 104 of this LGP 100 with the angle of running counter to reflection law, makes light be distributed in the exiting surface 104 of this LGP 100 uniformly thus.

Cooperate and consult Fig. 4 and Fig. 5, be respectively the stereogram and the cutaway view of the backlight module with LGP 100 of the utility model.This backlight module includes above-mentioned LGP combination, a plurality of luminescence unit 200, a backboard 300 and a reflector plate 400.

The main support structure that this backboard 300 is whole backlight module also can be used as the barrier of Electromagnetic Interference simultaneously, and has the function of impelling the heat radiation and making equalizing temperature.

Those LGPs 100 are to be arranged on this backboard 300, and the draw-in groove 103 of the LGP 100 of the protuberance 107 corresponding chimeric vicinities of those LGPs 100 makes those LGPs 100 be extended to the opposite side at this edge by one of this backboard 300 edge along a specific direction.

Those luminescence units 200 are first sides 102 that are arranged at those LGPs 100, and emit beam towards this first side 102 respectively, and this light is to this second side 106 along LGP 100 internal delivery; Be passed to the draw-in groove 103 of first side 102 of a LGP 100 under the tabling again via the protuberance 107 that is formed at this second side 106, in order to provide this backlight module one of required uniform source of light, wherein those luminescence units 200 are to utilize a plurality of light emitting diode to form.

This reflector plate 400 is to be arranged between this backboard 300 and this LGP 100, mainly in order to being sent by this luminescence unit 200 but spill in this LGP 100 of light reflected back of this LGP 100, to improve the service efficiency of light.

Cooperate and to consult Fig. 6, be the stereogram of the LGP combination of the utility model second embodiment.This LGP combination includes a plurality of LGPs 600, and respectively this LGP 600 includes an exiting surface 602, one first side 604, one second side 606, one the 3rd side 608 and one the 4th side 610, a basal surface 612.This basal surface 612 is to become wedge-like with this exiting surface angle that tilts; This first side 604 is to be adjacent to one of this basal surface 612 side, and this first side 604 is adjacent to the draw-in groove 605 that one of basal surface 612 side is formed with these first side, 604 openings on one day.This second side 606 is the offsides that are adjacent to this basal surface 612 and are positioned at this first side 604, and is stretched out by this basal surface 612 and to be formed with a protuberance 607.The

3rd side

608 and 610 of the 4th sides are adjacent to the other both sides of this exiting surface 602 respectively, and respectively perpendicular to this first side 604 and this second side 606, and the 3rd side 608 is formed with a groove 609 and a projection 611 respectively with the 4th side 610.

Cooperate and to consult Fig. 7, be the splicing schematic diagram of the LGP of the utility model second embodiment.This LGP 600 is when actual assembled, and in X-direction, the protuberance 607 of those LGP 600 second sides 606 is corresponding chimeric with the draw-in groove 605 of adjoining LGP 600 first sides 604, and stretches out along X-direction.In addition, on Y direction perpendicular to X-direction, 609 of the grooves of those LGP 600 the 3rd sides 608 are corresponding chimeric with the projection 611 of adjacent LGP 600 the 4th side 610, and stretch out along Y direction, make 600 one-tenth matrix forms of LGP of integral body arrange, and stretch out along orthogonal two predetermined directions respectively.

In addition, those LGPs 600 that are rectangular arrangement are those luminescence units 200, these backboards 300 that can cooperate the utility model first embodiment, and this reflector plate 400 is to form a backlight module.Those LGP 600 things are arranged between this backboard 300 and this reflector plate 400, and those LGPs 600 are the offsides that extended to this side by one of this backboard 300 side along two orthogonal specific directions.Those luminescence units 200 are first sides 604 that are arranged at those LGPs 600, and emit beam towards this first side 604, those light are via being passed to this second side 606, the 3rd side 608 and the 4th side 610 within this LGP 600, being positioned at the protuberance 607 of second side 606, the groove 609 of the 3rd side 608 and the projection 611 of the 4th side 610 via this again and being passed to contiguous LGP 600 draw-in grooves 605, projection 611 and groove 609.The light that those luminescence units 200 can be sent through those LGPs 600 guides to whole LGP combination equably, to provide liquid crystal indicator one uniform surface light source.

Comprehensive the above, the draw-in groove that the utility model utilization is corresponding chimeric and protuberance, groove and projection make single LGP be able to along one or two specific direction firm be spliced into a bigger exiting surface.And, this LGP combination is to use chimeric mode to make up those LGPs, form the LGP that forms compared to the repeatedly mode of putting that prior art is described, its integral body is more firm, and can avoid causing exiting surface tangible bright line to occur because of the splicing defective tightness.

Right the above only be the preferred embodiment of the utility model, when the scope that can not limit the utility model enforcements, promptly all equalization variations of doing according to the utility model claim and modification etc. all should still belong in the claim protection domain of the present utility model.

Claims

1. a LGP combining structure is to be applied to a backlight module, and this backlight module includes a backboard, a plurality of luminescence unit and LGP combination; This LGP combination includes a plurality of LGPs, and those LGPs are to be arranged on this backboard, and respectively this LGP comprises: an exiting surface; It is characterized in that also comprising: become a basal surface of wedge-like with this exiting surface angle that tilts; Be adjacent to one first side of one of this basal surface side, and this first side is adjacent to the draw-in groove that one of this exiting surface side is formed with this first lateral opening on one day; And one second side that is adjacent to the opposite side of this basal surface, and stretch out by this basal surface and to be formed with a protuberance; Those luminescence units are first sides that are arranged at those LGPs, and emit beam towards this first side, and this light is along this LGP internal delivery to the second side respectively; And the draw-in groove of the protuberance by chimeric respectively this LGP accordingly and contiguous LGP, make this light be able to transmission in this LGP combination.

2. LGP combining structure according to claim 1, it is characterized in that: respectively the draw-in groove of this LGP includes one and roughly is adjacent to this second surface with second surface, that the parallel first surface of this basal surface, is approximately perpendicular to this first surface and towards the 3rd surface of this first surface, and the 4th surface that is adjacent to the 3rd surface and parallels with this first side.

3. LGP combining structure according to claim 2, it is characterized in that: respectively the protuberance of this LGP is the second surface that is resisted against contiguous LGP, respectively second side of this LGP is smooth in the 4th surface of contiguous LGP, and the first surface of the LGP of basal surface of feasible respectively this LGP and vicinity fits.

4. LGP combining structure according to claim 1 is characterized in that: this LGP also comprises: one the 3rd side; Described the 3rd side is to be adjacent to this exiting surface, and perpendicular to this first side and this second side, is formed with a groove on the 3rd side; One the 4th side; Described the 4th side is to be adjacent to this exiting surface, and is positioned at the offside of the 3rd side, is formed with a projection on the 4th side.

5. LGP combining structure according to claim 4, it is characterized in that: the draw-in groove tabling of the protuberance thing of those LGP first sides and adjoining LGP second side, the groove of those LGP the 3rd sides is and the projection tabling of adjacent LGP the 4th side, makes those LGPs be able to be extended to by one of this backboard side along two orthogonal specific directions the offside of this backboard.

6. LGP combining structure according to claim 4 is characterized in that: respectively the draw-in groove of this LGP is to extend to the 4th side by the 3rd side.

7. LGP combining structure according to claim 4 is characterized in that: respectively the protuberance of this LGP is to extend to the 4th side by the 3rd side.

8. LGP combining structure according to claim 1 is characterized in that: also comprise a plurality of light elements that are arranged at one of this LGP basal surface.

9. LGP combining structure according to claim 1 is characterized in that: this draw-in groove is U type or V-type.

10. the backlight module with LGP combining structure comprises: a backboard; One LGP combining structure; It is characterized in that: a described LGP combining structure includes a plurality of LGPs, and those LGPs are arranged on this backboard, and respectively this LGP comprises: an exiting surface; Become a basal surface of wedge-like with this exiting surface angle that tilts; Be adjacent to one first side of one of this basal surface side, and this first side is adjacent to the draw-in groove that one of this exiting surface side is formed with this first lateral opening on one day; Be adjacent to one second side of the opposite side of this basal surface, and be formed with a protuberance, respectively the protuberance of this LGP is corresponding chimeric with the draw-in groove of contiguous LGP; And a plurality of luminescence units; Described a plurality of luminescence unit is this first side that is arranged at those LGPs, and emit beam towards this first side, this light be along those LGP internal delivery to this second side, and those LGPs by tabling make this light be able to transmit in adjacent LGP.

11. the backlight module with LGP combining structure according to claim 10 is characterized in that: also comprise a reflector plate that is arranged between this backboard and this LGP combining structure.

12. the backlight module with LGP combining structure according to claim 10, it is characterized in that: respectively the draw-in groove of this LGP includes one and roughly is adjacent to this second surface with second surface, that the parallel first surface of this basal surface, is approximately perpendicular to this first surface and towards the 3rd surface of this first surface, and the 4th surface that is adjacent to the 3rd surface and parallels with this first side.

13. the backlight module with LGP combining structure according to claim 12, it is characterized in that: respectively the protuberance of this LGP is the second surface that is resisted against contiguous LGP, respectively second side of this LGP is smooth in the 4th surface of contiguous LGP, and the first surface of the LGP of basal surface of feasible respectively this LGP and vicinity fits.

14. the backlight module with LGP combining structure according to claim 10 is characterized in that: this LGP also comprises: one the 3rd side; Described the 3rd side is to be adjacent to this exiting surface, and perpendicular to this first side and this second side, is formed with a groove on the 3rd side; One the 4th side; Described the 4th side is to be adjacent to this exiting surface, and is positioned at the offside of the 3rd side, is formed with a projection on the 4th side.

15. the backlight module with LGP combining structure according to claim 14, it is characterized in that: the protuberance of those LGP first sides is the draw-in groove tablings with adjoining LGP second side, the groove of those LGP the 3rd sides is and the projection tabling of adjacent LGP the 4th side, makes those LGPs be able to be extended to by one of this backboard side along two orthogonal specific directions the offside of this backboard.

16. the backlight module with LGP combining structure according to claim 14 is characterized in that: respectively the draw-in groove of this LGP is to extend to the 4th side by the 3rd side.

17. the backlight module with LGP combining structure according to claim 14 is characterized in that: respectively the protuberance of this LGP is to extend to the 4th side by the 3rd side.

18. the backlight module with LGP combining structure according to claim 10 is characterized in that: this LGP also comprises: a plurality of light elements that are arranged at the basal surface of this output optical zone.

19. the backlight module with LGP combining structure according to claim 10 is characterized in that: respectively this draw-in groove of this LGP is U type or V-type.

20. the backlight module with LGP combining structure according to claim 10 is characterized in that: this luminescence unit is a light emitting diode.