CN207895195U - Sidelight type backlight module - Google Patents
Sidelight type backlight module Download PDFInfo
- Publication number
- CN207895195U CN207895195U CN201721891871.2U CN201721891871U CN207895195U CN 207895195 U CN207895195 U CN 207895195U CN 201721891871 U CN201721891871 U CN 201721891871U CN 207895195 U CN207895195 U CN 207895195U
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- CN
- China
- Prior art keywords
- guide plate
- light guide
- backlight module
- type backlight
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009792 diffusion process Methods 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- Planar Illumination Modules (AREA)
Abstract
The utility model provides a kind of sidelight type backlight module, including light guide plate, the light source positioned at the light guide plate side, the reflecting layer positioned at the light guide plate lower surface, the prismatic lens positioned at the diffusion layer of the light guide plate upper surface and positioned at the diffusion layer upper surface；The diffusion layer is the first frosted layer positioned at the light guide plate upper surface, and/or, it is located at the second frosted layer of the prismatic lens lower surface.Because diffusion layer is formed by the second frosted layer for being set up directly on the first frosted layer of light guide plate upper surface and being arranged in prismatic lens lower surface, it is not necessary that the diffuser plate of the prior art is specially arranged, also it can reduce the composition number of plies of sidelight type backlight module, then reduce the thickness of backlight module；Also, it is not necessarily to consider the assembling procedure of diffuser plate, simplified assembling process using the backlight module of aforementioned structure.
Description
Technical field
The utility model is related to technical field of liquid crystal display, more particularly to a kind of sidelight type backlight module.
Background technology
Liquid crystal display is the image display of Vehicles Collected from Market mainstream, has obtained widely answering on intelligent devices
With.Liquid crystal display includes mainly the backlight module for generating uniform light and the liquid crystal for realizing the control of each region image information
Panel；Because sidelight type backlight module has the characteristics that easy for installation, uniform light degree is preferable, liquid crystal display uses at present
Backlight module is sidelight type backlight module.
The lightening of smart machine requires higher and higher, and the thickness of liquid crystal display is correspondingly also required also correspondingly to subtract
It is small.Under the premise of the material of liquid crystal display panel and thickness property determine, it is capable for how further reducing the thickness of backlight module
Industry focus.But technically, in order to ensure that backlight module light-emitting uniformity, sidelight type backlight module must be provided with reflecting
The components such as plate, light guide plate, dispersion plate and prism plate, and in order to ensure the technological feasibility of assembly, the thickness of various components is not
It can be configured too small.
Utility model content
The utility model provides a kind of new sidelight type backlight module, may be implemented sidelight type backlight module thickness into one
Step reduces.
The utility model provides a kind of sidelight type backlight module, including light guide plate, positioned at the light guide plate side light source,
Reflecting layer positioned at the light guide plate lower surface, the diffusion layer positioned at the light guide plate upper surface and be located at the diffusion layer upper table
The prismatic lens in face；
The diffusion layer is the first frosted layer positioned at the light guide plate upper surface, and/or, it is located at the prismatic lens following table
Second frosted layer in face.
Optionally, the surface of first frosted layer and/or second frosted layer is provided with transparent coatings；
Evenly dispersed scattering pearl is provided in transparent coatings stating.
Optionally, the scattering pearl is the scattering pearl of PET material.
Optionally, the reflecting layer is the metallic reflection coating positioned at the light guide plate lower surface.
Optionally, the scattering netted dot of array arrangement is provided in the lower surface of the light guide plate.
Optionally, the light guide plate is by close to the light source side to the wedge being gradually reduced far from the light source side thickness
Shape.
Optionally, the light source is point light source；
The groove for accommodating the point light source is provided in side of the light guide plate towards the light source；
The groove is V-groove or arc groove.
Optionally, further include the diffusion sheet being arranged in the prismatic lens upper surface.
Optionally, further include being located around the plastic frame of the light guide plate and prismatic lens side setting and positioned at described
The metal coating frame of reflecting layer lower surface；
The light source is fixed in the plastic frame.
Because diffusion layer is by being set up directly on the first frosted layer of light guide plate upper surface and being arranged in prismatic lens lower surface
Second frosted layer is formed, and without the diffuser plate of the special setting prior art, can also reduce the composition of sidelight type backlight module
The number of plies then reduces the thickness of backlight module；Also, it is not necessarily to consider the assembling work of diffuser plate using the backlight module of aforementioned structure
Sequence, simplified assembling process.
Description of the drawings
By reference to the following description in conjunction with the accompanying drawings and the contents of the claims, and with to the utility model more
Comprehensive understanding, other purposes and result of the utility model will be more clearly understood and understood.In the accompanying drawings：
Fig. 1 is the schematic cross-section for the sidelight type backlight module that utility model embodiment provides；
Wherein：11- light guide plates, the first frosted layers of 111-, 12- light sources, the reflecting layer 13-, 14- prismatic lens, 141- second are ground
Layer of sand, 15- plastic frames, 16- metal coating frames, 17- diffusion sheets.
Identical label indicates similar or corresponding feature or function in all the appended drawings.
Specific implementation mode
Specific embodiment of the utility model is described in detail below with reference to attached drawing.
Fig. 1 is the schematic cross-section for the sidelight type backlight module that utility model embodiment provides.As shown in Figure 1, this practicality
The sidelight type backlight module that new embodiment provides includes light guide plate 11, light source 12, reflecting layer 13, diffusion layer and prismatic lens 14.
Light source 12 is located at the side of light guide plate 11, for emitting light to light guide plate 11；Reflecting layer 13 is arranged in light guide plate
11 lower surface, the light for being reflected into light guide plate 11 avoid light from being projected from 11 downside of light guide plate and scatter；Diffusion
Layer is arranged in the upper surface of light guide plate 11, for scattering the light projected from 11 upper surface of light guide plate so that light is by moderately
Disperse, is more uniform from the distribution of light-emitting surface light.
In the present embodiment, diffusion layer includes the first frosted layer 111 and the second frosted layer 141；The setting of first frosted layer 111 exists
The upper surface of light guide plate 11 is formed after being handled by frosted by the upper surface of light guide plate 11；Second frosted layer 141 is arranged in prismatic lens
14 lower surface is formed by the lower surface of prismatic lens 14 by frosted processing.
Because diffusion layer is by being set up directly on the first frosted layer 111 of 11 upper surface of light guide plate and being arranged under prismatic lens 14
Second frosted layer 141 formation on surface can also reduce the group of backlight module without the diffuser plate of the special setting prior art
At the number of plies, then reduce the thickness of backlight module；Also, it is not necessarily to consider the assembling of diffuser plate using the backlight module of aforementioned structure
Process, simplified assembling process.
In the present embodiment, diffusion layer includes being arranged in the first frosted layer 111 of 11 upper surface of light guide plate and setting in prism
Second frosted layer 141 of 14 lower surface of piece.In other embodiments, diffusion layer can also only include the first frosted layer 111 and the
One of two frosted layers 141.In the present embodiment, because the first frosted layer 111 and 141 surface of the second frosted layer are coarse structure,
So one layer of cavity layer as illustrated in the drawing can be formed in the two joint place.In practical application, the very thin thickness of cavity layer, substantially
It can be ignored.
Further, in other embodiments, may be used also on the surface of the first frosted layer 111 and/or the second frosted layer 141
Transparent coatings are arranged, and evenly dispersed scattering pearl is set in transparent coatings, to realize light into one using scattering pearl
Line is scattering, improves the uniformity of light source 12.Because transparent coatings and scattering pearl are arranged using coating process in the first frosted layer
111 and second on frosted layer 141, so thickness can be configured very little.In the present embodiment, scattering pearl preferably uses PET material
Manufactured scattering pearl.
Continuing with referring to Fig. 1, in the present embodiment, reflecting layer 13 is that the metallic reflection positioned at 11 lower surface of light guide plate is plated
Layer, that is, reflecting layer 13 is arranged in the lower surface of light guide plate 11 using coating process.Because reflecting layer 13 uses coating
Technique is arranged in the lower surface of light guide plate 11, thus its thickness can also be arranged it is very thin, then further reduce backlight mould
The thickness of group.
It, should be into possibly making in 11 exit facet of light guide plate in order to improve the uniformity that light is emitted from backlight module surface
The light of injection has the preferable uniformity, the scattering netted dot of array arrangement can be arranged in the lower surface of light guide plate 11 thus,
The light transmitted using scattering netted dot dispersion light guide plate 11.
Further, wedgewise can also be arranged in light guide plate 11, specially from by 12 side of close to sources to separate light source 12
The thickness of side light guide plate 11 is gradually reduced, to form the dispersion degree that sloping reflector improves light using wedge shape.
The light source 12 used in the present embodiment is point light source；For ease of the arrangement of point light source, in light guide plate 11 towards light source
The groove for accommodating point light source can also be arranged in 12 side, and point light source is placed in groove.It is more preferred, the present embodiment concave
Slot is V-groove or arc groove.
Other than with aforementioned structure, the backlight module that the utility model embodiment provides can also include being arranged in prism
The diffusion sheet 17 of 14 upper surface of piece avoids so that the light by prismatic lens 14 is suitably spread again because emergent ray is aobvious
The characteristic of prismatic lens 14 is shown.
Continuing with referring to Fig. 1, backlight module provided in this embodiment further includes plastic frame 15 and metal coating frame 16.Plastic cement
Frame 15 is arranged around light guide plate 11 and prismatic lens 14, for light guide plate 11, prismatic lens 14, reflecting layer 13 to be fixed and protected from side
With diffusion sheet 17；In addition, the setting of light source 12 is in 15 inside of plastic frame.The lower surface in reflecting layer 13 is arranged in metal coating frame 16,
For protecting the optical module in sidelight type backlight module from bottom.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model is answered described with power
Subject to the protection domain that profit requires.
Claims (9)
1. a kind of sidelight type backlight module, including light guide plate (11), be located at the light guide plate (11) side light source (12), be located at
The reflecting layer (13) of light guide plate (11) lower surface, be located at the light guide plate (11) upper surface diffusion layer and be located at the expansion
Dissipate the prismatic lens (14) of layer upper surface；It is characterized in that：
The diffusion layer is the first frosted layer (111) positioned at the light guide plate (11) upper surface, and/or, it is located at the prism
Second frosted layer (141) of piece (14) lower surface.
2. sidelight type backlight module according to claim 1, it is characterised in that：
The surface of first frosted layer (111) and/or second frosted layer (141) is provided with transparent coatings；
Evenly dispersed scattering pearl is provided in the transparent coatings.
3. sidelight type backlight module according to claim 2, it is characterised in that：
The scattering pearl is the scattering pearl of PET material.
4. according to claim 1-3 any one of them sidelight type backlight modules, it is characterised in that：
The reflecting layer (13) is the metallic reflection coating positioned at the light guide plate (11) lower surface.
5. sidelight type backlight module according to claim 4, it is characterised in that：
The lower surface of the light guide plate (11) is provided with the scattering netted dot of array arrangement.
6. sidelight type backlight module according to claim 4, it is characterised in that：
In the light guide plate (11) by being gradually reduced to far from the light source (12) side thickness close to the light source (12) side
Wedge shape.
7. sidelight type backlight module according to claim 4, it is characterised in that：
The light source (12) is point light source；
The side of the light guide plate (11) towards the light source (12) is provided with the groove for accommodating the point light source；
The groove is V-groove or arc groove.
8. according to claim 1-3 any one of them sidelight type backlight modules, it is characterised in that：
Further include diffusion sheet (17) of the setting in the prismatic lens (14) upper surface.
9. according to claim 1-3 any one of them sidelight type backlight modules, it is characterised in that：
Further include being located around the plastic frame (15) of the light guide plate (11) and the setting of the prismatic lens (14) side and positioned at institute
State the metal coating frame (16) of reflecting layer (13) lower surface；
The light source (12) is fixed in the plastic frame (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721891871.2U CN207895195U (en) | 2017-12-28 | 2017-12-28 | Sidelight type backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721891871.2U CN207895195U (en) | 2017-12-28 | 2017-12-28 | Sidelight type backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207895195U true CN207895195U (en) | 2018-09-21 |
Family
ID=63550852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721891871.2U Expired - Fee Related CN207895195U (en) | 2017-12-28 | 2017-12-28 | Sidelight type backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207895195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051949A (en) * | 2017-12-28 | 2018-05-18 | 重庆市中光电显示技术有限公司 | A kind of sidelight type backlight module |
-
2017
- 2017-12-28 CN CN201721891871.2U patent/CN207895195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051949A (en) * | 2017-12-28 | 2018-05-18 | 重庆市中光电显示技术有限公司 | A kind of sidelight type backlight module |
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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 |
Granted publication date: 20180921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |