CN206819011U - A kind of backlight module of double-colored light source - Google Patents
A kind of backlight module of double-colored light source Download PDFInfo
- Publication number
- CN206819011U CN206819011U CN201720353710.1U CN201720353710U CN206819011U CN 206819011 U CN206819011 U CN 206819011U CN 201720353710 U CN201720353710 U CN 201720353710U CN 206819011 U CN206819011 U CN 206819011U
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- Prior art keywords
- guide plate
- light guide
- led lamp
- light
- covered
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Abstract
The utility model proposes a kind of backlight module of double-colored light source, it is related to back lighting device technical field, including diffusion barrier, light guide plate, reflectance coating, bound edge film, wiring board, white LED lamp, red LED lamp and locating dowel, the diffusion barrier is covered in the light-emitting area of light guide plate, the region that the light guide plate light-emitting area covers the diffusion barrier is also evenly distributed with some sites, the reflectance coating is covered in the lower surface of light guide plate, one side of the light guide plate sets the wiring board, the white LED lamp and red LED lamp are arranged on the wiring board, remaining side of the light guide plate is covered with bound edge film, the locating dowel is arranged on the light guide plate lower surface.LED of the present utility model using two different colours, that is, reduce LED quantity, reduce cost cost, reduce the consumption power and caloric value of product, add glow color again, whole backlight module stable performance, illumination effect is well-balanced, goes out light quality height.
Description
Technical field
Back lighting device technical field is the utility model is related to, especially a kind of backlight module of double-colored light source.
Background technology
Liquid crystal display is more and more applied to social every field, because liquid crystal panel will not light in itself, therefore
Side light-entering type light source module group is often used as its backlight, to illuminate liquid crystal panel.The light source of present liquid crystal display will
Ask and accomplish to minimize, and require the variation of glow color.
Utility model content
The utility model provides a kind of backlight module of double-colored light source, and light is soft uniform, multicolor luminous.
The utility model specifically adopts the following technical scheme that realization：
A kind of backlight module of double-colored light source, including diffusion barrier, light guide plate, reflectance coating, bound edge film, wiring board, white light LEDs
Lamp, red LED lamp and locating dowel, the diffusion barrier are covered in the light-emitting area of light guide plate, and the light guide plate light-emitting area covers institute
The region for stating diffusion barrier is also evenly distributed with some sites, and the reflectance coating is covered in the lower surface of light guide plate, the light guide plate
A side wiring board is set, the white LED lamp and red LED lamp are arranged on the wiring board, the light guide plate
Remaining side covered with bound edge film, the locating dowel is arranged on the light guide plate lower surface.
Preferably, being also covered with photomask in the light-emitting area of the light guide plate, the photomask is located at the white light LEDs
The top of lamp and red LED lamp.
Preferably, the edge of the diffusion barrier is fixed on the light guide plate by double faced adhesive tape.
Preferably, the locating dowel is provided with four, locating dowel described in two of which is arranged on the side of the light guide plate
At edge, two other described locating dowel is arranged on the light guide plate centre position.
A kind of backlight module of double-colored light source provided by the utility model, its advantage are：Using two different face
The LED of color, that is, reduce LED quantity, reduce cost cost, reduce the consumption power and caloric value of product, increase again
Glow color, whole backlight module stable performance, illumination effect is well-balanced, goes out light quality height.
Brief description of the drawings
Fig. 1 is the front view of the utility model backlight source module；
Fig. 2 is the upward view of the utility model backlight source module；
Fig. 3 is the left view of the utility model backlight source module；
Fig. 4 is the rearview of the utility model backlight source module
Fig. 5 is the circuit connection diagram of paster LED lamp.
In figure：1- light guide plates；2- diffusion barriers；3- reflectance coatings；4- wiring boards；5- bound edge films；6- locating dowels；7- photomasks；
8- white LED lamps；9- red LED lamps；11- sites；21- double faced adhesive tapes.
Embodiment
To further illustrate each embodiment, the utility model is provided with accompanying drawing.These accompanying drawings are in the utility model discloses
A part for appearance, it can coordinate the associated description of specification to explain the running of embodiment original mainly to illustrate embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new
The advantages of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
As shown in Fig. 1,2,3,4,5, a kind of backlight module for double-colored light source that this implementation provides, including diffusion barrier 2, leaded light
Plate 1, reflectance coating 3, bound edge film 5, wiring board 4, photomask 7, white LED lamp 8, red LED lamp 9 and locating dowel 6, diffusion barrier 2 cover
Cover in the light-emitting area of light guide plate 1, be fixed on by double faced adhesive tape 21 on light guide plate 1, the light-emitting area of light guide plate 1 covering diffusion barrier 2
Region is also evenly distributed with some sites 11, and reflectance coating 3 is covered in the lower surface of light guide plate 1, and a side of light guide plate 1 sets line
Road plate 4, white LED lamp 8 and red LED lamp 9 are installed in assist side 4, and white LED lamp 8 and red LED lamp 9 use up and down
Structure is installed, and white LED lamp 8 is located at the surface of red LED lamp 9.Remaining side of light guide plate 1 is covered with bound edge film 5, positioning
Post 6 is arranged on the lower surface of light guide plate 1, and photomask 7 is covered in the light-emitting area of light guide plate 1, and photomask 7 is located at the He of white LED lamp 8
The top of red LED lamp 9.Locating dowel 6 is provided with four, and two of which locating dowel 6 is arranged on the edge of light guide plate 1, in addition
Two locating dowels 6 are arranged on the centre position of light guide plate 1, therefore the two locating dowels 6 have been arranged on luminous zone, in order to not influence to light
Effect, site 11 can not be set again by setting the region of the two locating dowels 6.
In the present embodiment, the leading foot KW of white LED lamp 8 and leading foot AW connect 3V, 15mA direct current, and red LED lamp 9 draws
Go out pin KR and leading foot AR connects 2V, 10mA direct current.Light guide plate 1 is by polymethyl methacrylate or makrolon material system
Into.Polymethyl methacrylate has the characteristics that good translucency and energy saving, and its light transmittance is up to 93%, and printing opacity is splendid,
Light is soft, dazzling, and use cost is relatively low.Makrolon water white transparency, heat-resisting, shock resistance, there is good translucency
Etc. characteristic.Both the above material is existing base material and can be advantageous to improve backlight source module as the material of light guide plate 1
Go out light quality.
Operation principle of the present utility model is：The light of white LED lamp 8 and red LED lamp 9 is in the presence of light guide plate 1, light
Line forward, upper and lower, left and right light, all returned on light guide plate 1 by the light of bound edge film 5, reflectance coating 3 under, left and right, preceding,
Again pass through light guide plate 1 site 11, be dealt into the upper surface of guide face plate 1 uniform light, after by diffusion barrier 2, it is possible to light
Mildly, equably affected area source.The application has two light emitting sources, can individually show white light or feux rouges, also can be combined
It has been shown that, reaches and sends heterogeneous light effect, and 4 locating dowels at the back side of light guide plate 1, wherein there is 2 locating dowels at it close to leading
Tabula rasa interposition, the position can not set site again, not only played positioning action but also made whole backlight module luminous uniform.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model can be made a variety of changes, be the scope of protection of the utility model.
Claims (4)
1. a kind of backlight module of double-colored light source, it is characterised in that including diffusion barrier, light guide plate, reflectance coating, bound edge film, circuit
Plate, white LED lamp, red LED lamp and locating dowel, the diffusion barrier are covered in the light-emitting area of light guide plate, the light guide plate hair
The region that smooth surface covers the diffusion barrier is also evenly distributed with some sites, and the reflectance coating is covered in the lower surface of light guide plate,
One side of the light guide plate sets the wiring board, and the white LED lamp and red LED lamp are arranged on the wiring board,
Covered with bound edge film, the locating dowel is arranged on the light guide plate lower surface for remaining side of the light guide plate.
A kind of 2. backlight module of double-colored light source according to claim 1, it is characterised in that：The light-emitting area of the light guide plate
On be also covered with photomask, the photomask is located at the top of the white LED lamp and red LED lamp.
A kind of 3. backlight module of double-colored light source according to claim 1, it is characterised in that：The edge of the diffusion barrier leads to
Double faced adhesive tape is crossed to be fixed on the light guide plate.
A kind of 4. backlight module of double-colored light source according to claim 1, it is characterised in that：The locating dowel is provided with four
Individual, locating dowel described in two of which is arranged on the edge of the light guide plate, and two other described locating dowel is arranged on described lead
Tabula rasa centre position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720353710.1U CN206819011U (en) | 2017-04-06 | 2017-04-06 | A kind of backlight module of double-colored light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720353710.1U CN206819011U (en) | 2017-04-06 | 2017-04-06 | A kind of backlight module of double-colored light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206819011U true CN206819011U (en) | 2017-12-29 |
Family
ID=60753224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720353710.1U Expired - Fee Related CN206819011U (en) | 2017-04-06 | 2017-04-06 | A kind of backlight module of double-colored light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206819011U (en) |
-
2017
- 2017-04-06 CN CN201720353710.1U patent/CN206819011U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20210406 |