CN208459728U - A kind of vehicle-mounted backlight of bilateral entering light - Google Patents
A kind of vehicle-mounted backlight of bilateral entering light Download PDFInfo
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- CN208459728U CN208459728U CN201820881015.7U CN201820881015U CN208459728U CN 208459728 U CN208459728 U CN 208459728U CN 201820881015 U CN201820881015 U CN 201820881015U CN 208459728 U CN208459728 U CN 208459728U
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Abstract
The utility model relates to back light source technique fields, specifically disclose a kind of vehicle-mounted backlight of bilateral entering light, a kind of vehicle-mounted backlight of bilateral entering light, aluminium casting pedestal, reflectance coating, light guide plate, optical film layer, rubber shell including the assembling of level from bottom to top, are pasted with lamp bar on one group of opposite side inner wall of the aluminium casting pedestal respectively；The light guide plate is long to be respectively arranged with optical film layer positioning column to the left end on side, right end, middle-end is provided with lateral One-Point Location small boss, the One-Point Location small boss and the left end or is provided with the optical film layer rubberizing boss of the fixed optical film layer between the right end.The beneficial effect is that: in backlight reliability test, One-Point Location small boss expands light guide plate to edge direction bilateral symmetry long, guarantee that its dilation space is consistent, ensure the homogeneity of optical effect, reach surface uniformity index, and its dimensional accuracy superelevation is easily assembled, and is improved the brightness of product, is enhanced the anti-seismic performance of product.
Description
Technical field
The utility model relates to back light source technique field more particularly to a kind of vehicle-mounted backlights of bilateral entering light.
Background technique
Conventional vehicle-mounted backlight is generally provided only with a backlight lamp bar, and is all made of long side entering light structure, which sets
Meter is simple, brightness is low, and the heat source of backlight lamp bar drives the heat source of IC Chong Die with long to unilateral LCD, in addition brightness requirement height, LED
The problems such as quantity is more, bilateral entering light structure are come into being, and have very excellent application prospect.
But there is also more problems to need to solve for bilateral entering light, length when such as assembling light guiding plate to side bilateral symmetry
Property, the consistency of left and right expansion space, the homogeneity of optical effect, the speed of heat dissipation and the loosening performance of light guide plate etc..It passes
Bilateral entering light structure of uniting in lower aluminium frame or aluminium casting left end, there are two steel column or limited posts for right end setting, or in light guide plate or so
There are two positioning convex platform, these ways are extremely difficult to symmetry, reliability and the validity of bilateral entering light light guide plate for two sides setting,
Light guide plate is long insufficient to side left end, right end expansion space, it may be difficult to lightguide plate fixing, be easy to happen in transportational process bounce,
It generates abnormal sound or loosens.
Summary of the invention
The technical issues of the utility model provides a kind of vehicle-mounted backlight of bilateral entering light, solution is the bilateral entering light of tradition
Structure in lower aluminium frame or aluminium casting left end, there are two steel column or limited posts for right end setting, or be provided at left and right sides of light guide plate
Two positioning convex platforms, these ways are extremely difficult to symmetry, reliability and the validity of bilateral entering light light guide plate, light guide plate it is long to
Side left end, right end expansion space are insufficient, there is fixed a possibility that not living light guide plate, are easy to happen in transportational process and bounce, produce
Raw abnormal sound loosens.
In order to solve the above technical problems, the utility model provides a kind of vehicle-mounted backlight of bilateral entering light, including is arrived by down
Aluminium casting pedestal, the reflectance coating, light guide plate, optical film layer, rubber shell of upper level assembling, in one group of opposite side of the aluminium casting pedestal
Lamp bar is pasted on wall respectively；
The one light guide plate length is respectively arranged with upward optical film layer positioning column to the left end on side, right end, and middle-end is set
It is equipped with lateral One-Point Location small boss, the One-Point Location small boss and the left end or is provided between the right end solid
The optical film layer rubberizing boss of the fixed optical film layer.
Preferably, center line bilateral symmetry of the lamp bar along the aluminium casting pedestal.
Preferably, one inner sidewall of aluminium casting pedestal is equipped with the positioning that fastening is inlayed with the One-Point Location small boss
Groove, the two is in conjunction with ensuring light guide plate bilateral symmetry and length is consistent to the expansion rate or shrinking percentage at side both ends.
Preferably, the optical film layer includes that the light-diffusing film, lower layer's bright enhancement film, middle layer of level assembling from bottom to top add lustre to
Film, upper layer bright enhancement film；The light-diffusing film, lower layer's bright enhancement film, the middle layer bright enhancement film and the upper layer bright enhancement film left end,
Right end is equipped with the "u"-shaped groove mutually agreed with the optical film layer positioning column.
Preferably, the long both ends inner wall to side of the light guide plate equipped with the One-Point Location small boss respectively with it is anti-loosening
Silica gel interference fit prevents the light guide plate mobile.
Preferably, the aluminium casting base bottom is equipped with close to the lamp bar and dissipates with the consistent strip in lamp bar direction
Heat channel, the lamp bar are attached on the two short opposite sides inner walls or two long side inner walls of the aluminium casting pedestal.
A kind of vehicle-mounted backlight of bilateral entering light provided by the utility model, by One-Point Location small boss on light guide plate with
The engaging of positioning groove and the filling of anti-loosening silica gel can guarantee that light guide plate is fastened on the loading end of aluminium casting pedestal,
It does not loosen；In backlight reliability test, One-Point Location small boss expands light guide plate to edge direction bilateral symmetry long, protects
It is consistent to demonstrate,prove its dilation space, it is ensured that the homogeneity of optical effect reaches surface uniformity index, and its dimensional accuracy is super
Height is easily assembled, and effectively improves the brightness of product, enhances the anti-seismic performance of product；Aluminium casting pedestal can also be into one
Step improves the heat dissipation performance of product, extends the service life of product, it is easier to the integrated molding of threaded hole, strip radiating groove,
Also it is able to satisfy that client is full-featured, complex-shaped design requirement.
Detailed description of the invention
Fig. 1 is a kind of front axonometric drawing of the vehicle-mounted backlight of bilateral entering light provided by the embodiment of the utility model；
Fig. 2 is the Structure explosion diagram of Fig. 1 embodiment provided by the utility model；
Fig. 3 is the structural schematic diagram of the light guide plate of Fig. 2 embodiment provided by the utility model；
Fig. 4 is the structural schematic diagram of the aluminium casting pedestal of Fig. 2 embodiment provided by the utility model；
Fig. 5 is the schematic diagram that light guide plate is packed into aluminium casting pedestal of Fig. 2 embodiment provided by the utility model；
Fig. 6 is the reverse side axonometric drawing of Fig. 1 embodiment provided by the utility model.
Wherein: aluminium casting pedestal 1, lamp bar 11, positioning groove 12, strip radiating groove 13, threaded hole 14, hook 15；Reflection
Film 2；Light guide plate 3, optical film layer positioning column 31,32, One-Point Location small boss 33,34 (first boss of optical film layer rubberizing boss
341, second boss 342, third boss 343 and the 4th boss 344), anti-loosening silica gel 35；Optical film layer 4, light-diffusing film 41, under
Layer bright enhancement film 42, middle layer bright enhancement film 43, upper layer bright enhancement film 44；Rubber shell 5, surface foam rubber 51.
Specific embodiment
The embodiments of the present invention is specifically illustrated with reference to the accompanying drawing, and embodiment is only given in order to illustrate mesh
, it can not be interpreted as the restriction to the utility model, including attached drawing is only for reference and illustrates use, do not constituted practical new to this
The limitation of type scope of patent protection, because on the basis of not departing from the spirit and scope of the utility model, it can be to the utility model
Carry out many changes.
The front axonometric drawing and its structure of a kind of vehicle-mounted backlight of bilateral entering light provided by the embodiment of the utility model are quick-fried
Fried figure, respectively as depicted in figs. 1 and 2, aluminium casting pedestal 1, reflectance coating 2, light guide plate 3, light including the assembling of level from bottom to top
Learn film layer 4, rubber shell 5, be pasted with lamp bar 11 respectively on one group of opposite side inner wall of the aluminium casting pedestal 1, can be two short sides into
Light is also possible to two long side entering lights.
As shown in the structural schematic diagram of Fig. 3 light guide plate 3 provided, the long left end to side of a light guide plate 3, right end point
It is not provided with optical film layer positioning column 31,32, middle-end is provided with lateral One-Point Location small boss 33, and the One-Point Location is small convex
Platform 33 and the left end or the optical film layer rubberizing boss 34 that the fixed optical film layer 4 is provided between the right end.
As shown in the schematic diagram of internal structure of the loading end of Fig. 4 aluminium casting pedestal 1 provided, the aluminium casting pedestal 1 one
Inner sidewall, which is equipped with, inlays the positioning groove 12 of fastening with the One-Point Location small boss 33, and the two is in conjunction with ensuring the light guide plate
3 bilateral symmetries and long expansion rate or shrinking percentage to side both ends is consistent, the One-Point Location small boss 33 and the positioning groove
12 precise structures, accurate size control, have ensured the optical effect of backlight product.Wherein, the lamp bar 11 is cast along the aluminium
Part pedestal 1 center line bilateral symmetry, 1 bottom of aluminium casting pedestal be equipped with close to the lamp bar 11 and with 11 side of lamp bar
To consistent strip radiating groove 13.The heat dissipation area that the heat that LED light bar 11 issues is contacted with aluminium casting pedestal 1 is big, Ke Yigao
Effect ground is that backlight product radiates, in addition, aluminium casting pedestal 1 is cast molding, can be melted into threaded hole 14 and 15 one of hook
Type.
Preferably, the lamp bar 11 is attached on two short opposite sides inner walls of the aluminium casting pedestal 1, but two long side inner walls are same
Sample is implementable.This design can not only ensure the long precise positioning to side of light guide plate 3, moreover it is possible to test light guide plate 3 in reliability
In card, there is consistent change rate at length direction both ends, and solve bilateral entering light optical effect surface uniformity.It can be found in Fig. 5, be
The schematic diagram of loading 1 loading end of aluminium casting pedestal of light guide plate 3.
Referring again to Fig. 1, the optical film layer 4 include from bottom to top level assembling light-diffusing film 41, lower layer's bright enhancement film 42,
Middle layer bright enhancement film 43, upper layer bright enhancement film 44；The light-diffusing film 41, lower layer's bright enhancement film 42, the middle layer bright enhancement film 43 and institute
State the left end of upper layer bright enhancement film 44, right end is equipped with the "u"-shaped groove mutually agreed with 4 positioning column of optical film layer (in figure not
It shows).
Referring again to Fig. 3, the optical film layer rubberizing boss 34 include separate first boss 341, second boss 342,
Third boss 343 and the 4th boss 344；
In assembling, the light-diffusing film 41, lower layer's bright enhancement film 42, the middle layer bright enhancement film 43 add lustre to the upper layer
Film 44 is attached to the first boss 341, the second boss 342, the third boss 343 and the described 4th by double faced adhesive tape
Boss 344.The corresponding boss of one film is than more preferably way, the first boss 341, the second boss 342,
The third boss 343 and the 4th boss 344 respectively correspond the light-diffusing film 41, lower layer's bright enhancement film 42, it is described in
Layer bright enhancement film 43 and the upper layer bright enhancement film 44.4 positioning column of optical film layer is closely embedded in the "u"-shaped groove (in figure not
Show) in, it completes to fix, guarantees that components separation will not occur for entire backlight product, formed such as Fig. 1 (front axonometric drawing) and figure
Backlight product shown in 6 (reverse side axonometric drawings).
In the present embodiment, the interior frame of the rubber shell 5 is pasted with surface foam rubber 51, finally in surface foam rubber 51
Wall-attached surface protective film prevents from causing scrapping for product in the substances entry of backlight such as extraneous dust, impurity, moisture source, mainly
It is worked as a buffer to mould group.
The long both ends inner wall to side of the light guide plate equipped with the One-Point Location small boss 33 respectively with anti-loosening silica gel
35 interference fits prevent the light guide plate 3 mobile, loosen light guide plate 3 will not.
A kind of vehicle-mounted backlight of bilateral entering light provided by the embodiment of the utility model, passes through One-Point Location on light guide plate 3
Small boss 33 and the engaging of positioning groove 12 and the filling of anti-loosening silica gel 35, can guarantee that light guide plate 3 is fastened on aluminium casting
On the loading end of pedestal 1, do not loosen；In backlight reliability test, One-Point Location small boss 33 makes light guide plate 3 long to side
Direction bilateral symmetry expands, and guarantees that its dilation space is consistent, it is ensured that the homogeneity of optical effect reaches surface uniformity and refers to
Mark, and the brightness of product is effectively improved, enhance the anti-seismic performance of product；Aluminium casting pedestal 1 can also further increase
The heat dissipation performance of product extends the service life of product, it is easier to the integrated molding of threaded hole 14, strip radiating groove 13.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (6)
1. a kind of vehicle-mounted backlight of bilateral entering light, aluminium casting pedestal, reflectance coating, leaded light including the assembling of level from bottom to top
Plate, optical film layer, rubber shell, it is characterised in that:
It is pasted with lamp bar respectively on one group of opposite side inner wall of the aluminium casting pedestal；
The light guide plate is long to be respectively arranged with optical film layer positioning column to the left end on side, right end, and middle-end is provided with lateral single-point
It positions small boss, the One-Point Location small boss and the left end or is provided with the fixed optical film layer between the right end
Optical film layer rubberizing boss.
2. a kind of vehicle-mounted backlight of bilateral entering light as described in claim 1, it is characterised in that: the lamp bar is cast along the aluminium
The center line bilateral symmetry of part pedestal.
3. a kind of vehicle-mounted backlight of bilateral entering light as described in claim 1, it is characterised in that: in the aluminium casting pedestal one
Side wall, which is equipped with, inlays the positioning groove of fastening with the One-Point Location small boss, and the two is in conjunction with ensuring described light guide plate or so pair
Claim and long expansion rate or shrinking percentage to side both ends is consistent.
4. a kind of vehicle-mounted backlight of bilateral entering light as described in claim 1, it is characterised in that: the optical film layer include by
Under to upper level assemble light-diffusing film, lower layer's bright enhancement film, middle layer bright enhancement film, upper layer bright enhancement film；The light-diffusing film, the lower layer increase
Light film, the middle layer bright enhancement film are equipped with mutual with the optical film layer positioning column with the left end of the upper layer bright enhancement film, right end
The "u"-shaped groove agreed with.
5. a kind of vehicle-mounted backlight of bilateral entering light as described in claim 1, it is characterised in that: it is small to be equipped with the One-Point Location
The long both ends inner wall to side of the light guide plate of boss is interference fitted with anti-loosening silica gel respectively, prevents the light guide plate mobile.
6. a kind of vehicle-mounted backlight of bilateral entering light as described in claim 1, it is characterised in that: the aluminium casting base bottom
Equipped with close to the lamp bar and with the consistent strip radiating groove in the lamp bar direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820881015.7U CN208459728U (en) | 2018-06-07 | 2018-06-07 | A kind of vehicle-mounted backlight of bilateral entering light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820881015.7U CN208459728U (en) | 2018-06-07 | 2018-06-07 | A kind of vehicle-mounted backlight of bilateral entering light |
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| Publication Number | Publication Date |
|---|---|
| CN208459728U true CN208459728U (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820881015.7U Active CN208459728U (en) | 2018-06-07 | 2018-06-07 | A kind of vehicle-mounted backlight of bilateral entering light |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989067A (en) * | 2019-05-28 | 2020-04-10 | 中国电子科技集团公司第五十五研究所 | Low-cost high-reliability optical combination structure |
-
2018
- 2018-06-07 CN CN201820881015.7U patent/CN208459728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989067A (en) * | 2019-05-28 | 2020-04-10 | 中国电子科技集团公司第五十五研究所 | Low-cost high-reliability optical combination structure |
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