CN108519638A - Guide-lighting module and backlight assembly - Google Patents
Guide-lighting module and backlight assembly Download PDFInfo
- Publication number
- CN108519638A CN108519638A CN201810336289.2A CN201810336289A CN108519638A CN 108519638 A CN108519638 A CN 108519638A CN 201810336289 A CN201810336289 A CN 201810336289A CN 108519638 A CN108519638 A CN 108519638A
- Authority
- CN
- China
- Prior art keywords
- light
- luminescent layer
- light guide
- sheet
- guide sheet
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
Abstract
The invention discloses a kind of guide-lighting modules, it includes light guide sheet, reflector plate and guide-lighting diffusion sheet, light guide sheet has the upper and lower surface being oppositely arranged, light-emitting surface of the upper surface as light guide sheet, ink site is provided on lower surface, reflector plate is set to the lower section of light guide sheet, guide-lighting diffusion sheet is set to the top of light guide sheet, surface on reflector plate close to light guide sheet is provided with the first luminescent layer, surface on guide-lighting diffusion sheet close to light guide sheet is provided with the second luminescent layer, fluorescent powder is provided on first luminescent layer and/or the second luminescent layer, fluorescent powder excites for blue light.Leaded light module disclosed by the invention, it is detachable to be provided with the first luminescent layer of fluorescent powder and the second luminescent layer, when fluorescent powder is damaged, only needs to change the first luminescent layer and/or the second luminescent layer, avoids the waste of light guide sheet, save production cost；Meanwhile luminescent chromaticity is uniform, ensure that light guide effect.The invention also discloses a kind of backlight assemblies with the leaded light module.
Description
Technical field
The present invention relates to field of backlights, and in particular, to a kind of leaded light module and backlight assembly.
Background technology
Main component of the light guide sheet as light in guide-lighting module, light guide effect determine the irradiant uniformity
With comfort level.In general, fluorescent powder often is arranged on the surface of light guide sheet, can be excited after light contacts these fluorescent powders
Go out color of light corresponding with fluorescent powder, to meet the use needs of user.Traditional light guide sheet is acrylic material, because it is strong
Low reason is spent, is gradually replaced by glass light guide sheet, but glass light guide sheet is serious to spectral absorption, easily leads to illuminant colour
Degree is uneven, and light guide effect is bad；Secondly, it when fluorescent powder is by destroying, generally requires and replaces entire light guide sheet, cause material
Material waste.
Invention content
The technical problem to be solved by the present invention is to：In order to overcome the above-mentioned problems in the prior art, one is now provided
Kind of light guide effect is good, guide-lighting module and backlight assembly convenient for maintenance.
The present invention solve its technical problem the technical solution adopted is that：A kind of leaded light module, the leaded light module includes leading
There is the upper and lower surface being oppositely arranged, the upper surface to make for mating plate, reflector plate and guide-lighting diffusion sheet, the light guide sheet
For the light-emitting surface of the light guide sheet, ink site is provided on the lower surface, the reflector plate is set under the light guide sheet
Side, the leaded light diffusion sheet are set to the top of the light guide sheet, are provided with close to the surface of the light guide sheet on the reflector plate
First luminescent layer is provided with the second luminescent layer on the leaded light diffusion sheet close to the surface of the light guide sheet, and described first shines
Fluorescent powder is provided on layer and/or second luminescent layer, the fluorescent powder excites for blue light.
Further, first luminescent layer and the reflector plate are detachably connected, second luminescent layer with it is described
Guide-lighting diffusion sheet is detachably connected.
Further, the fluorescent powder is applied to first luminescent layer and second luminescent layer close to the light guide sheet
Surface on, or, the fluorescent powder is arranged in the inside of first luminescent layer and second luminescent layer.
Further, the ink site is the protrusion being arranged on the lower surface or groove.
Further, the light guide sheet is glass plate.
Further, the fluorescent powder is yellow fluorescent powder, or, the yellow fluorescent powder and red fluorescence powder of doping, or, mixing
Miscellaneous green emitting phosphor and red fluorescence powder.
Further, also there is one side, the side is located at the upper surface and the lower surface in the light guide sheet
Between, the side is as incidence surface.
A kind of backlight assembly, the backlight assembly include aforementioned any one of them leaded light module.
Further, the backlight assembly further includes prismatic lens, goes out light diffusing sheet and blue led light source, the prism
Piece is located at the top of the guide-lighting diffusion sheet, it is described go out light diffusing sheet be located at the tops of the prismatic lens, the blue led light source
Positioned at the side of the light guide sheet.
The beneficial effects of the invention are as follows：Leaded light module or backlight assembly provided by the invention, are provided with the first of fluorescent powder
Luminescent layer and the second luminescent layer are detachable, when fluorescent powder is damaged, only need to change the first luminescent layer and/or second shine
Layer, avoids the waste of light guide sheet, saves production cost；Meanwhile luminescent chromaticity is uniform, ensure that light guide effect.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the backlight assembly of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the backlight assembly of the embodiment of the present invention two；
Fig. 3 is the structural schematic diagram of the backlight assembly of the embodiment of the present invention three.
In figure：10, guide-lighting module, 11, light guide sheet, 12, reflector plate, 13, guide-lighting diffusion sheet, 111, upper surface, 112, under
Surface, 113, side, 114, ink site, the 121, first luminescent layer, the 131, second luminescent layer, 14, fluorescent powder, 20, prismatic lens,
30, go out light diffusing sheet, 40, blue led light source.
Specific implementation mode
Presently in connection with attached drawing, the present invention is described in detail.This figure is the schematic diagram of simplification, is only illustrated in a schematic way
The basic structure of the present invention, therefore it only shows the composition relevant to the invention.
Embodiment one
Referring to Fig. 1, the embodiment of the present invention one provides a kind of backlight assembly, the backlight assembly include guide-lighting module 10,
Prismatic lens 20 go out light diffusing sheet 30 and blue led light source 40, wherein prismatic lens 20 are located at the top of guide-lighting module 10, light extraction
Diffusion sheet 30 is located at the top of prismatic lens 20, and blue led light source 40 is located at the side of guide-lighting module 10, when work, blue LED light
The light that source 40 is sent out is projected by the top of guide-lighting module 10, is then passed sequentially through prismatic lens 20 and is gone out the injection of light diffusing sheet 30.
Specifically, guide-lighting module 10 includes light guide sheet 11, reflector plate 12 and guide-lighting diffusion sheet 13, and reflector plate 12 is located at
The lower section of light guide sheet 11, guide-lighting diffusion sheet 13 are located at the top of light guide sheet 11.
The substantially plate-like structure of light guide sheet 11, light guide sheet 11 are a glass plate.In light guide sheet 11 have upper surface 111, under
Surface 112 and side 113, wherein upper surface 111 is oppositely arranged with lower surface 112, and side 113 is located at upper surface 111 under
Between surface 112, and incidence surface of the side 113 as light guide sheet 11, light-emitting surface of the upper surface 111 as light guide sheet 11.
It is provided with ink site 114 on the lower surface 112 of light guide sheet 11, in present embodiment, ink site 114 is projection
Protrusion on the lower surface of light guide sheet 11 112, the hemispherical structure of the protrusion.It is to be appreciated that in other unshowned realities
It applies in mode, ink site 114 can also be the recessed groove on the lower surface of light guide sheet 11 112, not be restricted herein.When
Exciting light by the side 113 of light guide sheet 11 injects the inside of light guide sheet 11 and when being contacted with ink site 114, and exciting light can be
Refraction and reflection occur at ink site 114, the exciting light after refraction is projected by the lower surface 112 of light guide sheet 11, after reflection
Exciting light has the upper surface 111 of light guide sheet 11 to project.
Reflector plate 12 is used for reflection light, and the surface of light guide sheet 11 is provided with the first luminescent layer on reflector plate 12
121, guide-lighting diffusion sheet 13 is used for diffusing light, and the surface of light guide sheet 11 is provided with the second luminescent layer on guide-lighting diffusion sheet 13
131.In present embodiment, fluorescent powder 14 is both provided on the first luminescent layer 121 and the second luminescent layer 131, fluorescent powder 14 is indigo plant
Light excites.
Further, fluorescent powder 14 excites for blue light, and fluorescent powder 14 is yellow fluorescent powder.It is to be appreciated that other not
In the embodiment shown, fluorescent powder 14 can also be the yellow fluorescent powder and red fluorescence powder of doping, or, the green of doping is glimmering
Light powder and red fluorescence powder.
Specifically, blue led light source 40 is located at 113 side of side of light guide sheet 11, and the light-emitting axis of blue led light source 40
Line is located between the upper surface 111 and lower surface 112 of light guide sheet 11.When blue led light source 40 is via 113 phase light guide sheet 11 of side
When interior injection blue excitation light, exciting light occurs on the ink site 114 of light guide sheet 11 after reflecting and emitting, wherein refraction
Light be pierced by the lower surface 112 of light guide sheet 11 and penetrate on reflector plate 12 and emit, the exciting light of reflection touches first
After the fluorescent powder 14 of luminescent layer 121, light can be turned yellow under the action of fluorescent powder 14, when sodium yellow projects upper surface 111
The blue excitation light contacted with positioned at fluorescent powder 14 mixes and then forms white light, at this point, being projected by the upper surface 111 of light guide sheet 11
Light, that is, white light；Meanwhile blue excitation light projects after being reflected by ink site 114 to upper surface 111, when with the second luminescent layer
After 131 fluorescent powder 14 contacts, light can be turned yellow under the action of fluorescent powder 14, finally, which passes through multiple reflections
It is finally projected by upper surface 111 and is mixed to form white light with blue excitation light.Therefore, blue excitation light is propagated through in light guide sheet 11
Cheng Zhongyou is very big, and multiple reflections occur for probability, so that the light projected is more uniform, light guide effect is good.
Even if it should be noted that blue excitation light under the refraction action of ink site 114 not in contact with the first luminescent layer
Fluorescent powder 14 on 121 can also contact with ink site 114 under the reflex of reflector plate 12 and be reflected to first again
Luminescent layer 121 is simultaneously contacted with fluorescent powder 14, to be provoked into sodium yellow.
Further, the first luminescent layer 121 and reflector plate 12 are detachably connected, and the second luminescent layer 131 is spread with guide-lighting
Piece 13 is detachably connected.When fluorescent powder 14 is damaged as a result, light guide sheet 11 is replaced without carrying out, is only needed to change with glimmering
The first luminescent layer 121 or the second luminescent layer 131 of light powder 14, save material, can effectively control maintenance cost.
First luminescent layer 121 and the second luminescent layer 131 are photic zone, the photic zone and the first luminescent layer 121 and second
131 gluing of luminescent layer, in present embodiment, the first luminescent layer 121 and the second luminescent layer 131 are translucent silica gel, in addition, user
Irradiant gloomy and light levels can be controlled by selecting the silica gel of different light transmittances.It is to be appreciated that fluorescent powder
14 can be applied to the first luminescent layer 121 and the second luminescent layer 131 on the surface of light guide sheet 11, or, fluorescent powder 14 is arranged
In the inside of the first luminescent layer 121 and the second luminescent layer 131, it is not restricted herein.
Formation is flat after the white light that the guide-lighting module 10 of the present invention projects passes sequentially through prismatic lens 20 and goes out light diffusing sheet 30
Face light and then for users to use.
This illustrates the guide-lighting module 10 and backlight assembly that embodiment one provides, and is provided with the first luminescent layer of fluorescent powder 14
121 and second luminescent layer 131 be detachable, when fluorescent powder 14 is damaged, only need to change the first luminescent layer 121 and/or
Two luminescent layers 131, avoid the waste of light guide sheet 11, save production cost；Meanwhile luminescent chromaticity is uniform, ensure that
Light guide effect.
Embodiment two
Referring to Fig. 2, the present embodiment two guide-lighting module 10 and the embodiment that provide once the difference of guide-lighting module 10 exist
In, in the present embodiment two, the fluorescent powder 14 on the first luminescent layer 121 is omitted, at this point, play luminescent chromaticity uniformly, it is guide-lighting
While working well, replacement operation when can also fluorescent powder 14 is convenient for damage for the second luminescent layer 131, and structure is simpler
It is single, easily facilitate production.
The present embodiment two additionally provides a kind of backlight assembly with the leaded light module 10, other in the backlight assembly
Structure is identical as embodiment one, and details are not described herein again.
Embodiment three
Referring to Fig. 3, the present embodiment three guide-lighting module 10 and the embodiment that provide once the difference of guide-lighting module 10 exist
In, in the present embodiment three, the fluorescent powder 14 on the second luminescent layer 131 is omitted, at this point, play luminescent chromaticity uniformly, it is guide-lighting
While working well, replacement operation when can also fluorescent powder 14 is convenient for damage for the first luminescent layer 121, and structure is simpler
It is single, easily facilitate production.
The present embodiment three additionally provides a kind of backlight assembly with the leaded light module 10, other in the backlight assembly
Structure is identical as embodiment one, and details are not described herein again.
It is enlightenment, through the above description, relevant staff with above-mentioned desirable embodiment according to the present invention
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which its technical scope is determined according to right.
Claims (9)
1. a kind of leaded light module, it is characterised in that：The leaded light module includes light guide sheet, reflector plate and guide-lighting diffusion sheet, institute
Stating light guide sheet has the upper and lower surface being oppositely arranged, light-emitting surface of the upper surface as the light guide sheet, under described
Ink site is provided on surface, the reflector plate is set to the lower section of the light guide sheet, and the leaded light diffusion sheet is set to described lead
The top of mating plate is provided with the first luminescent layer on the reflector plate close to the surface of the light guide sheet, on the leaded light diffusion sheet
The surface of the light guide sheet is provided with the second luminescent layer, is arranged on first luminescent layer and/or second luminescent layer
There are fluorescent powder, the fluorescent powder to be excited for blue light.
2. leaded light module as described in claim 1, it is characterised in that：First luminescent layer and the reflector plate are removably
Connection, second luminescent layer and the guide-lighting diffusion sheet are detachably connected.
3. leaded light module as described in claim 1, it is characterised in that：The fluorescent powder is applied to first luminescent layer and institute
The second luminescent layer is stated on the surface of the light guide sheet, or, fluorescent powder setting is in first luminescent layer and described the
The inside of two luminescent layers.
4. leaded light module as described in claim 1, it is characterised in that：The ink site is to be arranged on the lower surface
Protrusion or groove.
5. leaded light module as described in claim 1, it is characterised in that：The light guide sheet is glass plate.
6. leaded light module as described in any one in claim 1-5, it is characterised in that：The fluorescent powder is yellow fluorescent powder, or,
The yellow fluorescent powder and red fluorescence powder of doping, or, the green emitting phosphor and red fluorescence powder of doping.
7. leaded light module as claimed in claim 6, it is characterised in that：Also there is one side, the side in the light guide sheet
Between the upper surface and the lower surface, the side is as incidence surface.
8. a kind of backlight assembly, it is characterised in that：The backlight assembly includes claim 1-7 any one of them leaded light moulds
Group.
9. backlight assembly as claimed in claim 8, it is characterised in that：The backlight assembly further includes prismatic lens, light extraction diffusion
Piece and blue led light source, the prismatic lens are located at the top of the guide-lighting diffusion sheet, it is described go out light diffusing sheet be located at the rib
The top of eyeglass, the blue led light source are located at the side of the light guide sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810336289.2A CN108519638A (en) | 2018-04-16 | 2018-04-16 | Guide-lighting module and backlight assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810336289.2A CN108519638A (en) | 2018-04-16 | 2018-04-16 | Guide-lighting module and backlight assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108519638A true CN108519638A (en) | 2018-09-11 |
Family
ID=63429356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810336289.2A Pending CN108519638A (en) | 2018-04-16 | 2018-04-16 | Guide-lighting module and backlight assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108519638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021115434A1 (en) * | 2019-12-12 | 2021-06-17 | 单正建 | Warning apparatus, control method for warning apparatus, and traffic accident linkage system |
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| WO2021115434A1 (en) * | 2019-12-12 | 2021-06-17 | 单正建 | Warning apparatus, control method for warning apparatus, and traffic accident linkage system |
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