CN206741156U - Optically focused support and backlight module - Google Patents
Optically focused support and backlight module Download PDFInfo
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- CN206741156U CN206741156U CN201720415821.0U CN201720415821U CN206741156U CN 206741156 U CN206741156 U CN 206741156U CN 201720415821 U CN201720415821 U CN 201720415821U CN 206741156 U CN206741156 U CN 206741156U
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- optically focused
- reflection wall
- guide plate
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Abstract
The utility model discloses a kind of optically focused support and backlight module, wherein, the optically focused support includes rack body, laser pump cavity is provided with the rack body, the internal chamber wall of the laser pump cavity has reflective, and the rack body is communicated with the first opening and the second opening of the laser pump cavity, and first opening and the second opening are in be oppositely arranged, described first is open is set for the light source for installing the backlight module, the incidence surface of light guide plate of second opening towards the backlight module.What technical solutions of the utility model can increase light guide plate incidence surface enters light, so as to improve the coupling efficiency of light guide plate.
Description
Technical field
Back light model setting technology field is the utility model is related to, more particularly to a kind of optically focused support and backlight module.
Background technology
In the prior art in order to realize the ultrathin design of backlight module, it is necessary to as far as possible reduce backlight module in light guide plate thickness
Degree, however, after the thickness of light guide plate reduces, the height of its incidence surface correspondingly reduces, so that incidence surface is highly less than usual institute
The height of the lamp source of lamp bar；It is appreciated that the incidence surface of lamp source face light guide plate is set, the height of incidence surface is less than lamp source
Height, the arrival incidence surface that the light that lamp source is sent is less can be caused, be more wasted, reduce light guide plate optical coupling effect
Rate.
Utility model content
Main purpose of the present utility model is to propose a kind of optically focused support, it is intended to solves ultra-thin television in the prior art
The light that lamp source is sent less reaches the incidence surface of light guide plate, is more wasted, so that the skill that light guide plate coupling efficiency is low
Art problem.
To achieve the above object, the utility model proposes optically focused support, including rack body, set in the rack body
There is laser pump cavity, the internal chamber wall of the laser pump cavity has reflective, and the rack body is communicated with the first of the laser pump cavity
Opening and the second opening, in being oppositely arranged, described first is open for installing the backlight for first opening and the second opening
The light source of module, the incidence surface of light guide plate of second opening towards the backlight module are set.
Preferably, the laser pump cavity includes an optically focused section set close to the described second opening, and the optically focused section is from institute
State the first opening towards described second opening direction on be in tapered setting.
Preferably, the rack body is included in the vertical direction in the upper reflection wall and lower reflection wall being oppositely arranged, institute
State and form the laser pump cavity between reflection wall and lower reflection wall.
Preferably, the upper reflection wall has a convex globoidal set close to the described second opening, and the convex globoidal is certainly
Described first is open towards on the direction of the described second opening, is convex to the lower reflection wall and sets.
Preferably, the radius of circle where the convex globoidal is 0.5mm~3mm.
Preferably, the lower reflection wall has an inclined plane set close to the described second opening, and the inclined plane is certainly
Described first is open towards on the direction of the described second opening, is obliquely installed towards the upper reflection wall.
Preferably, the range of tilt angles of the inclined plane relative level is 2 °~8 °.
Preferably, the rack body also includes one vertically to the rear reflection wall of extension, the upper end of the rear reflection wall
Provided with the upper reflection wall, lower end is provided with the lower reflection wall, and the middle part of the rear reflection wall is provided with the described first opening.
Preferably, the rack body is made up of PC materials.
The utility model also proposes a kind of backlight module, including lamp bar, light guide plate and optically focused support, the optically focused support bag
Rack body is included, is provided with laser pump cavity in the rack body, the internal chamber wall of the laser pump cavity has reflective, and the support sheet
Body is communicated with the first opening and the second opening of the laser pump cavity, and first opening and the second opening are in be oppositely arranged, institute
The light source that the first opening is used to install the backlight module is stated, the described second light guide plate being open towards the backlight module enters
Smooth surface is set；
The optically focused branch is set up in the lamp bar, and between the lamp bar and light guide plate, so that the lamp bar
Lamp source is located in the first opening of the optically focused support, the second incidence surface being open towards the light guide plate of the optically focused support
Set.
Technical solutions of the utility model are by the way that in introducing an optically focused support in backlight module, the optically focused support includes optically focused
Chamber, the internal chamber wall of the laser pump cavity have reflective, and an opening of laser pump cavity is provided with the lamp source of backlight module, another opening direction
The incidence surface of backlight module light guide plate is set；In this way, laser pump cavity of the light through optically focused support that lamp source is sent, reflecting condensation, and arrive
Up to the incidence surface of light guide plate, avoid light and be scattered propagation and light guide plate can not be transferred to, so as to effectively increase the light of light guide plate
Coupling efficiency.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the utility model backlight module one；
Fig. 2 is the partial enlarged drawing at A in Fig. 1；
Fig. 3 is the structural representation of optically focused support in Fig. 2；
Fig. 4 is the schematic elevation view of the part-structure of backlight module in Fig. 1；
Fig. 5 is along the cut-away illustration of V-V lines in Fig. 4；
Fig. 6 is the enlarged diagram at B in Fig. 5.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 1 | Light guide plate | 11 | Incidence surface |
| 2 | Optically focused support | 21 | Rack body |
| 211 | Upper reflection wall | 211a | First medial surface |
| 211b | First lateral surface | 212 | Lower reflection wall |
| 212a | Second medial surface | 212b | Inclined plane |
| 212c | Second lateral surface | 212d | Abutting part |
| 213 | Reflection wall afterwards | 22 | Laser pump cavity |
| 221 | Optically focused section | 222 | Horizontal segment |
| 223 | First opening | 224 | Second opening |
| 3 | Lamp bar | 31 | Lamp source |
| 32 | Installing plate | 4 | Radiator |
| 5 | Front frame | 6 | Liquid crystal panel |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
Individual this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of optically focused support, backlight module is mainly used in, to strengthen entering for light guide plate incidence surface
Light, improve the coupling efficiency of light guide plate.Certainly, the optically focused support, which can also be applied to other needs, strengthens in the product of light.
Referring to Figures 1 and 2, the backlight module include front frame 5, liquid crystal panel 6, glue frame, diaphragm, light guide plate 1, reflector plate with
And back board module, back board module include radiator 4 and lamp bar 3, radiator 4 is provided with a mounting groove (not shown), and lamp bar 3 is set
At the mounting groove, and the incidence surface of light guide plate 1 described in the face of lamp source 31 of lamp bar 3 is set；It is appreciated that in order to realize
, it is necessary to which the thickness of light guide plate 1 is reduced as far as possible, the height of its incidence surface correspondingly reduces the ultrathin design of backlight module, so that
Incidence surface is highly less than the height of the lamp source 31 of conventionally used lamp bar 3；It is appreciated that the height of incidence surface is less than lamp source 31
Highly, the less arrival incidence surface of the light that lamp source 31 is sent can be caused, be more wasted, reduce the optical coupling effect of light guide plate 1
Rate；The light that lamp source 31 is reduced while in order to realize that light guide plate 1 is ultra-thin wastes, so as to improve the coupling efficiency of light guide plate 1, this
Utility model proposes this optically focused support 2, the concrete structure of the optically focused support 2 explained below.
In the utility model embodiment, reference picture 3 to Fig. 5, the optically focused support 2 includes rack body 21, rack body
It is provided with laser pump cavity 22 in 21, the internal chamber wall of laser pump cavity 22 has a reflective, and rack body 21 is communicated with the of laser pump cavity 22
In being oppositely arranged, the first opening 223 is used to install for one opening 223 and the second opening 224, the first opening 223 and the second opening 224
Lamp source 31, the second opening 224 are set towards the incidence surface 11 of light guide plate 1.
It is appreciated that optically focused support 2 is also located at mounting groove；In the present embodiment, lamp source 31 is LED bulb, it will be understood that
LED bulb is widely used lamp source 31 in the prior art, cheap, energy consumption is relatively low；Certainly, in other embodiment, in
Other lamp sources 31 are may also set up in laser pump cavity 22, the design is not restricted to this.
Technical solutions of the utility model are by the way that in introducing an optically focused support 2 in backlight module, the optically focused support 2 includes optically focused
Chamber 22, the internal chamber wall of the laser pump cavity 22 have reflective, and an opening of laser pump cavity 22 is provided with the lamp source 31 of backlight module, another
The incidence surface 11 being open towards backlight module light guide plate 1 is set；In this way, laser pump cavity of the light through optically focused support 2 that lamp source 31 is sent
22, reflecting condensation, and reach the incidence surface 11 of light guide plate 1, avoid light and be scattered propagation and light guide plate 1 can not be transferred to, so as to
Effectively increase the light coupling efficiency of light guide plate 1.
Further, laser pump cavity 22 includes the optically focused sections 221 set close to the second opening 224, and optically focused section 221 is from the
It is in tapered setting that one opening 223 is open on 224 direction towards second.It is appreciated that it is arranged such so that in optically focused section 221
Interior light is open in direction second during 224 transmission, the frequency more and more higher reflected on the internal chamber wall of laser pump cavity 22, and
And convergence effect is obvious all the more, line light extraction is ultimately formed, incides the incidence surface 11 of the light guide plate 1 at the second opening 224
On.In the present embodiment, laser pump cavity 22 also includes the horizontal segment 222 set close to the first opening 223；Certainly, in other embodiment
In, laser pump cavity 22 also can be in tapered setting all the time on the direction of the opening 224 of the first opening 223 to the second.
Further, rack body 21 include one vertically the rear reflection wall 213 to extension, on rear reflection wall 213
Hold upper reflection wall 211 that the incidence surface 11 towards light guide plate 1 extends and located at the rear lower end of reflection wall 213 towards light guide plate 1
The lower reflection wall 212 that incidence surface 11 extends；Reflection wall 213, upper reflection wall 211 and lower reflection wall 212 enclose to be formed jointly afterwards
The laser pump cavity 22, the middle part of rear reflection wall 213 are provided with the first opening 223, and upper reflection wall 211 has one close to the second opening 224
The first medial surface 211a, lower reflection wall 212 have one close to second opening 224 the second medial surface 212a, the first medial surface
211a and the second medial surface 212a enclose to form optically focused section 221.In the present embodiment, the lateral surface of rear reflection wall 213 is connected to lamp
The installing plate 32 of bar 3, the lamp source 31 of lamp bar 3 are stretched into laser pump cavity 22 at the first opening 223 of rear reflection wall 213, it is preferable that
It is be bonded by two-sided tape between the lateral surface of reflection wall 213 and the installing plate 32 of lamp bar 3 afterwards, certainly, in other embodiment,
The lateral surface of reflection wall 213 can also be connected to the installing plate 32 of lamp bar 3 by other means afterwards；In addition, in the present embodiment, it is upper anti-
Light wall 211 also has the first lateral surface 211b being oppositely arranged with the first medial surface 211a, and the first lateral surface 211b is close to second
Downside is obliquely installed forward for the part of opening 224, and to keep away the other structures being located in backlight module, lower reflection wall 212 also has
The second lateral surface 212c, the second lateral surface 212c being oppositely arranged with the second medial surface 212a is close to the part of the second opening 224
Bit-avoiding slot (not shown) is arranged with, to keep away the other structures being located in backlight module.It should be noted that the design is not limited to
This, in other embodiment, the reflection wall also can be only a cylindrical wall, and the cylindrical wall encloses the laser pump cavity 22.
Further, the first medial surface 211a is the convex globoidal set close to the second opening 22, and convex globoidal is opened from first
Mouth 223 is open on 224 direction towards second, is convex to lower reflection wall 212 and sets.It is appreciated that being arranged such, lamp source 31 is sent
Illumination when being mapped to the medial surface of circular arc chamfering, most light forward reflect by downside, then again by the second medial surface
212a is reflected back, and so repeatedly, is finally transmitted to the second opening 224 and is irradiated on the incidence surface 11 of light guide plate 1, send out lamp source 31
The light gone out is more passed to light guide plate 1, improves the coupling efficiency of light guide plate 1.Preferably, the radius of circle where convex globoidal
For 0.5mm~3mm, it will be understood that radius is excessive, and the light being irradiated on convex globoidal is easily reflected back toward the side where lamp source 31
To, and can not be from the export of the second opening 224；Radius of corner is too small, and the reflecting effect of convex globoidal can be caused poor, and influences optically focused
The light-focusing function of support 2.
Further, reference picture 6, the inclined plane 212b that the second medial surface 212a mono- is set close to the second opening, inclined plane
212b is obliquely installed on from the first opening 223 towards the direction of the second opening 224 towards upper reflection wall 211.It is appreciated that
Be arranged such, when the illumination that lamp source 31 is sent is mapped to inclined plane 212b, most light reflects towards front upper side, then again by
First medial surface 211a is reflected back inclined plane 212b, so repeatedly, is finally transmitted to the second opening 224 and is irradiated to light guide plate 1
On incidence surface 11, the light for sending lamp source 31 is more passed to light guide plate 1, improves the coupling efficiency of light guide plate 1.This reality
Apply in example, inclined plane 212b is some diamond-shaped cross-sections, and length direction of multiple diamond-shaped cross-sections along lower reflection wall 212 is (perpendicular to Fig. 5
The direction in section) to arrange successively, it is preferable that the quantitative range of diamond-shaped cross-section is 2~6, and each diamond-shaped cross-section is by lamp source 31
The length in direction towards the direction of the incidence surface 11 of light guide plate 1 be 0.2mm~0.8mm；Certainly, in other embodiment, tilt
Face 212b also can be specially other shapes.
Further, the angle of inclination of inclined plane 212b relative level is α, and α span is 2 °~8 °；It can manage
Solution, α is excessive, and the light being irradiated on inclined plane 212b is easily reflected back toward the direction where lamp source 31, and can not be from the second opening
224 export；Radius of corner is too small, and inclined plane 212b reflecting effect can be caused poor, and influences the optically focused work(of optically focused support 2
Energy.
Further, the front end of lower reflection wall 212 is provided with an abutting part for protruding from the setting of the front end of reflection wall 211
212d, abutting part 212d are used to abut for the lower end of light guide plate 1.It is appreciated that it is arranged such, equivalent to by under light guide plate 1
End is stretched into laser pump cavity 22, enters light with better ensure that the incidence surface 11 of light guide plate 1；In the present embodiment, upper reflection wall 211
The incidence surface 11 that front end is interval in light guide plate 1 in the longitudinal direction is set, so that it does not influence the tearing open along the vertical direction of light guide plate 1
Dress.
Further, rack body 21 is made up of PC materials.It is appreciated that PC materials are that backlight module is led in the prior art
A kind of widely used material in domain, is applied on optically focused support 2, ensure optically focused support 2 laser pump cavity 22 reflective it is same
When, also make optically focused support 2 that there is resistant to elevated temperatures characteristic, during so as to avoid the usage time of lamp bar 3 longer, the temperature mistake of optically focused support 2
It is high and be damaged.In the present embodiment, the PC materials are PC-URC2501 materials, preferably to improve the laser pump cavity 22 of optically focused support 2
Reflectivity and heat resistance；Certainly, in other embodiment, optically focused support 2 can also be made up of other PC materials.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure change under inventive concept of the present utility model, made using the utility model specification and accompanying drawing content
Change, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of optically focused support, for backlight module, it is characterised in that be provided with including rack body, in the rack body poly-
Optical cavity, the internal chamber wall of the laser pump cavity has reflective, and the rack body is communicated with the first opening of the laser pump cavity
With the second opening, in being oppositely arranged, described first is open for installing the backlight module for first opening and the second opening
Light source, it is described second opening towards the backlight module light guide plate incidence surface set.
2. optically focused support as claimed in claim 1, it is characterised in that the laser pump cavity includes one and set close to the described second opening
The optically focused section put, the optically focused section are in tapered setting on from the described first opening towards the described second direction being open.
3. optically focused support as claimed in claim 2, it is characterised in that the rack body is included in the vertical direction in relative
The upper reflection wall and lower reflection wall set, the laser pump cavity is formed between the upper reflection wall and lower reflection wall.
4. optically focused support as claimed in claim 3, it is characterised in that the upper reflection wall has one close to the described second opening
The convex globoidal of setting, the convex globoidal are convex to described lower anti-on from the described first opening towards the direction of the described second opening
Light wall is set.
5. optically focused support as claimed in claim 4, it is characterised in that the radius of circle where the convex globoidal for 0.5mm~
3mm。
6. optically focused support as claimed in claim 3, it is characterised in that the lower reflection wall has one close to the described second opening
The inclined plane of setting, the inclined plane is on from the described first opening towards the direction of the described second opening, towards described anti-
Light wall is obliquely installed.
7. optically focused support as claimed in claim 6, it is characterised in that the range of tilt angles of the inclined plane relative level
For 2 °~8 °.
8. optically focused support as claimed in claim 3, it is characterised in that the rack body also includes one vertically to extension
Reflection wall afterwards, the upper end of the rear reflection wall are provided with the upper reflection wall, and lower end is provided with the lower reflection wall, the rear reflection wall
Middle part be provided with described first opening.
9. the optically focused support as described in claim 1 to 8 any one, it is characterised in that the rack body is by PC material systems
Into.
10. a kind of backlight module, it is characterised in that including lamp bar, light guide plate and as described in claim 1 to 9 any one
Optically focused support, the optically focused branch is set up in the lamp bar, and between the lamp bar and light guide plate, so that the lamp bar
Lamp source be located in the first opening of the optically focused support, the second opening of the optically focused support towards the light guide plate enters light
Face is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720415821.0U CN206741156U (en) | 2017-04-19 | 2017-04-19 | Optically focused support and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720415821.0U CN206741156U (en) | 2017-04-19 | 2017-04-19 | Optically focused support and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206741156U true CN206741156U (en) | 2017-12-12 |
Family
ID=60561353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720415821.0U Active CN206741156U (en) | 2017-04-19 | 2017-04-19 | Optically focused support and backlight module |
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| CN (1) | CN206741156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632698A (en) * | 2018-06-22 | 2019-12-31 | 夏普株式会社 | Illumination device and display device |
-
2017
- 2017-04-19 CN CN201720415821.0U patent/CN206741156U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632698A (en) * | 2018-06-22 | 2019-12-31 | 夏普株式会社 | Illumination device and display device |
| US10705276B2 (en) | 2018-06-22 | 2020-07-07 | Sharp Kabushiki Kaisha | Lighting device and display device |
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