CN104456301B - A kind of LED light source module, LED light bar and down straight aphototropism mode set - Google Patents
A kind of LED light source module, LED light bar and down straight aphototropism mode set Download PDFInfo
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- CN104456301B CN104456301B CN201410652143.0A CN201410652143A CN104456301B CN 104456301 B CN104456301 B CN 104456301B CN 201410652143 A CN201410652143 A CN 201410652143A CN 104456301 B CN104456301 B CN 104456301B
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- led light
- light source
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- source module
- mode set
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of LED light source module, LED light bar and down straight aphototropism mode set.The LED light source module includes LED light source, and for carrying the bottom plate of the LED light source, the nested two or more lens of the LED light source, the center line of described two or more than two lens mutually coincides with the center line of the LED light source.The technical program is by by two or more nested lens of LED light source, to expand rising angle of the light from LED light source module；Make the LED light bar for including multiple LED light source modules, can reduce the usage quantity of LED light source by increasing the distance of two adjacent LEDs light source module, reduce cost；And the thickness for making to include the down straight aphototropism mode set of the LED light bar, in the range of 15mm, the light for being emitted LED light source spreads the purpose for uniformly, reaching and improving subjective effect on diffuser plate.
Description
Technical field
The present invention relates to the light source in electroporation field, more particularly to a kind of LED light source module, LED light bar and straight-down negative
Backlight module.
Background technology
The development trend of directly-down liquid crystal module is extra-thin module, i.e. thickness more and more thinner.In current existing skill
Under the conditions of art, LED used in backlight is under conditions of without lens lens, it is possible to achieve thicker backlight design, thickness one
As in more than 60mm；With the development of technology, straight-down negative is simple by achieving technology without using light guide plate, can be with cost
Compared favourably with side-light type, but its thickness limits to the application of straight-down negative module always, because only that the mixed light enough to LED light source away from
From its subjective picture effect can just meet to require, and the requirement of light mixing distance is just opposite with the slim market demand of module.
At present, single lens lens method is coordinated using single LEDs light source in down straight aphototropism mode set, and existing skill
The scheme of art concentrates on used in optimization LED light source on lens lens substantially, and not only implementation method is complicated, and there is one
Fixed limitation, it can not substantially fully achieve straight-down negative module thickness and further reduce.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve on
A kind of LED light source module, LED light bar and the down straight aphototropism mode set of problem are stated, the technical proposal of the invention is realized in this way：
On the one hand, the embodiments of the invention provide a kind of LED light source module, including LED light source, for carrying the LED
The bottom plate of light source, two or more lens are nested with outside the LED light source, it is described two or more than two
The center line of the center line of mirror and the LED light source mutually coincides.
Preferably, nested two lens of the LED light source.
Preferably, described two lens are all refraction type lens, outside refraction type lens and internal refraction type lens
Between air layer be present.
Preferably, described two lens are respectively reflective lens and refraction type lens, internal reflective lens and outer
Air layer be present between the refraction type lens in portion.
Wherein, the exiting surface of the reflective lens is concave surface.
Preferably, reflector plate is provided with the bottom plate.
Preferably, the material of each lens is polymetylmethacrylate.
The LED light source module that above-mentioned technical proposal provides, by the nested two or more lens of LED light source,
Make light by alternating refractive twice or more than twice, or pass through multiple alternating refractive again after total reflection, expand light
Shooting angle of the line from LED light source module.
On the other hand, the embodiments of the invention provide a kind of LED light bar, including the LED described in multiple above-mentioned technical proposals
Light source module and PCB, one or more of LED light source modules are arranged in the PCB.
The LED light bar that above-mentioned technical proposal provides, including one or more LED light source modules provided by the invention and PCB
Circuit board, by the way that on the basis of ensureing that the light transition of overlapping region of two adjacent LEDs light source module is uniform, increase is adjacent
The distance of two LED light source modules, the usage quantity of LED light source is reduced, reduces cost.
Another further aspect, the embodiments of the invention provide a kind of down straight aphototropism mode set, including diffuser plate and it is at least one on
The LED light bar described in technical scheme is stated, the diffuser plate is placed in the top of the LED light bar, sends for spreading LED light bar
Light.
The thickness of wherein described down straight aphototropism mode set is less than 15mm.
The down straight aphototropism mode set that above-mentioned technical proposal provides, by using LED light bar provided by the invention, makes LED light
The light of source outgoing spread uniformly on diffuser plate, and ensures the thickness of down straight aphototropism mode set in the range of 15mm, with satisfaction
The market demand ultra-thin to down straight aphototropism mode set.
Brief description of the drawings
Fig. 1 is that a kind of reflecting LED light source module of nested two refraction type lens provided in an embodiment of the present invention is illustrated
Figure；
Fig. 2 is the refraction-reflection type LED light source of a kind of nested reflective lens provided in an embodiment of the present invention and refraction type lens
Module diagram；
Fig. 3 is a kind of schematic diagram at this angle of cloth scholar for calculating total reflection provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram for the LED light bar for including the LED light source module shown in two Fig. 1；
Fig. 5 is the schematic diagram for the LED light bar for including the LED light source module shown in two Fig. 2；
Fig. 6 is the schematic diagram for the down straight aphototropism mode set for including the LED light bar shown in Fig. 4；
Fig. 7 is the schematic diagram for the down straight aphototropism mode set for including the LED light bar shown in Fig. 5.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiments of the invention provide a kind of LED light source module, including a LED light source, one is used to carry the LED light source
Bottom plate, two or more lens are nested with outside the LED light source, described two or more than two lens
The center line of center line and the LED light source mutually coincides, and makes outgoing uniform light.
The present invention design principle be：When the light that LED light source is sent passes through lens, due to the refraction of air layer and lens
Rate is different, and the refractive index of lens is more than the refractive index of air layer in the technical program, therefore is emitted to sky from lens in light
It can be reflected when in gas-bearing formation, so that light angle changes, and work as light by alternating refractive more than twice, or
After total reflection again after repeatedly refraction, its rising angle can increase.
As Fig. 1 and Fig. 2 are jointly shown, in the present embodiment, LED light source two lens of nesting, the materials of each lens into
It is divided into polymetylmethacrylate (being commonly called as lucite).It is a kind of refraction of nested two refraction type lens with reference to figure 1
Formula LED light source module schematic diagram, the refractive LED light source module include LED light source 11, bottom plate 12, internal refraction type lens
13rd, outside refraction type lens 14, the air layer 15 of suitable thickness between two refraction type lens be present.
Specifically, the light that LED light source 11 is sent is emitted to air layer after the refraction type lens 13 of inside reflect
15, then by air layer 15 after the refraction type lens 14 of outside reflect, projected from refractive LED light source module, so pass through
Repeatedly the maximum rising angle of emergent ray can reach more than 120 ° after refraction.
It should be noted that thickness about 1mm be present between internal refraction type lens 13 and the refraction type lens 14 of outside
Air layer 15, light is reached maximum from the angle after the outgoing of refractive LED light source module；In addition, internal refraction type is saturating
A certain distance be present between mirror 13 and LED light source 11, the refraction type inside high temperature failure when avoiding the work of LED light source 11 is saturating
Mirror 13.
, should for a kind of nested reflective lens and the Zigzag type LED light source module schematic diagram of refraction type lens with reference to figure 2
Zigzag type LED light source module includes LED light source 21, bottom plate 22, internal reflective lens 23, outside refraction type lens 24,
Make the air layer 25 that suitable thickness between two lens be present.
Specifically, the interface for most reflective lens 23 and air layer internally that LED light source 21 emits beam
It is upper be totally reflected after, the reflective lens 23 of inside are again introduced into, after the reflection of bottom plate 22, then by internal reflective
Lens 23 refract to air layer 25, from air layer 25 after the refraction type lens 24 of outside reflect, from refraction-reflection type LED light source mould
Block projects.So, light is by being totally reflected and repeatedly can reach the maximum rising angle of emergent ray after refraction
170 ° or so.Another part that LED light source 21 emits beam is emitted to sky after being directly over the refraction of reflective lens 23 of inside
Gas-bearing formation 25, then by air layer 25 after the refraction type lens 24 of outside reflect, projected from the Zigzag type LED light source module.
It should be noted that the concave design that the exiting surface of reflective lens 23 uses, sends LED light source 21 exhausted big
The incidence angle of some light is more than Brewster's angle, is all-trans on reflective lens 23 internally and the interface of air layer 25
Penetrate.For example, with reference to figure 3, concave surface is the exiting surface of reflective lens in figure, and convex surface is the exiting surface of refraction type lens, according to complete
Reflection formulaIt is about 41 ° to calculate Brewster's angle, and the incidence angle θ of light 31 is totally reflected when being more than 41 °,
It will be totally reflected when the incidence angle for the light that LED light source is sent is more than Brewster's angle.Wherein n1=1.52 are
The refractive index of PMMA lens, n2=1.00 be the refractive index of air.
It should be noted that equally exist thickness about between internal reflective lens 23 and the refraction type lens 24 of outside
1mm air layer 25, light is set to reach maximum from the angle after the outgoing of refractive LED light source module；In addition, internal is reflective
A certain distance be present between lens 23 and LED light source 21, the refraction type inside high temperature failure when avoiding the work of LED light source 21
Lens 23.
In one preferred embodiment, the bottom plate of LED light source module is provided with reflector plate, improves the reflection of bottom light, reduces
Light losing.
The LED light source module that the present embodiment provides, by the nested two or more lens of LED light source, making light
Line passes through multiple alternating refractive, or passes through multiple alternating refractive again after total reflection, to expand light from LED light source mould
The shooting angle of block.
Another embodiment of the present invention provides a kind of LED light bar, including one or more above-mentioned technical proposals provide
LED light source module and a PCB, the multiple LED light source module are arranged in PCB.
Fig. 4 is the schematic diagram for the LED light bar for including the LED light source module shown in two Fig. 1, and the LED light bar includes two
Refractive LED light source module 41 and PCB 42, two 41 linear types of LED light source module are equal according to a certain distance 43
Even is arranged in PCB 42, according to the distance 43 being actually needed between two LED light source modules 41 of adjustment so that two LED
The light transition of light overlapping region 44 between light source module 41 is uniform.
It should be noted that the LED light bar in the present invention is not limited to only include refractive LED light source module, also may be used
So that including refraction-reflection type LED light source module, with reference to figure 5, the LED light source of each LED light source module 51 is nested reflective in Fig. 5
Mirror and refraction type lens.
The LED light bar that the present embodiment provides, including one or more LED light source modules provided by the invention, by protecting
Demonstrate,prove two adjacent LEDs light source module overlapping region light transition it is uniform on the basis of, increase two adjacent LEDs light source module
Distance, reduce the usage quantity of LED light source, reduce cost.
Another embodiment of the present invention provides a kind of down straight aphototropism mode set, including a diffuser plate and at least one above-mentioned
The LED light bar that technical scheme provides, diffuser plate are placed in the top of LED light bar, the light sent for spreading LED light bar.
Fig. 6 and Fig. 7 is a kind of schematic diagram of down straight aphototropism mode set provided by the invention, the thickness of the down straight aphototropism mode set
Degree 64 is 15mm, including diffuser plate 61 and LED light bar 62 (or LED light bar 72), the LED lamp source of the LED light bar 62 in wherein Fig. 6
Module is all refractive LED light source module, and the LED source module of the LED light bar 72 in Fig. 7 is all refraction-reflection type LED light source module,
Overlapping region 63 transition of the light that two adjacent LEDs light source is sent in LED light bar 62 (or LED light bar 72) on diffuser plate 61
Very uniformly, subjective effect is preferable.
The down straight aphototropism mode set that the present embodiment provides, by using LED light bar provided by the invention, goes out LED light source
The light penetrated spreads uniformly on diffuser plate, and ensures the thickness of down straight aphototropism mode set in the range of 15mm, to meet to straight
The ultra-thin market demand of type backlight module.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (4)
1. a kind of LED light source module, including LED light source, for carrying the bottom plate of the LED light source；Characterized in that,
Two lens, the center line of the center line of described two lens and the LED light source are nested with outside the LED light source
Mutually coincide, described two lens are respectively the folding of reflective lens and refraction type lens, internal reflective lens and outside
Penetrate between formula lens and air layer be present；The exiting surface of the reflective lens is concave surface, and reflector plate is provided with the bottom plate；
The material of each lens is polymetylmethacrylate.
2. a kind of LED light bar, it is characterised in that including one or more LED light source modules as claimed in claim 1 and PCB
Circuit board, one or more of LED light source modules are arranged in the PCB.
3. a kind of down straight aphototropism mode set, it is characterised in that including diffuser plate and at least one LED as claimed in claim 2
Lamp bar, the diffuser plate are placed in the top of the LED light bar, the light sent for spreading LED light bar.
4. down straight aphototropism mode set according to claim 3, it is characterised in that the thickness of the down straight aphototropism mode set is small
In 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652143.0A CN104456301B (en) | 2014-11-15 | 2014-11-15 | A kind of LED light source module, LED light bar and down straight aphototropism mode set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652143.0A CN104456301B (en) | 2014-11-15 | 2014-11-15 | A kind of LED light source module, LED light bar and down straight aphototropism mode set |
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| Publication Number | Publication Date |
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| CN104456301A CN104456301A (en) | 2015-03-25 |
| CN104456301B true CN104456301B (en) | 2018-02-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106681052B (en) * | 2016-11-16 | 2019-11-15 | 京东方科技集团股份有限公司 | A kind of backlight module and display device |
| DE102017108113A1 (en) * | 2017-04-13 | 2018-10-18 | Rzb Rudolf Zimmermann, Bamberg Gmbh | Multiple lens arrangement for a lighting device |
| CN109188779B (en) * | 2018-10-31 | 2021-07-16 | 厦门天马微电子有限公司 | Backlight module, manufacturing method thereof and display device |
| CN112242092A (en) * | 2019-07-17 | 2021-01-19 | 高创(苏州)电子有限公司 | Backlight module, display panel and preparation method of backlight module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204313107U (en) * | 2014-11-15 | 2015-05-06 | 青岛歌尔声学科技有限公司 | A kind of LED light source module, LED lamp bar and down straight aphototropism mode set |
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| KR101080355B1 (en) * | 2004-10-18 | 2011-11-04 | 삼성전자주식회사 | Light emitting diode, lens for the same |
| CN201731297U (en) * | 2010-05-04 | 2011-02-02 | 艾迪光电（杭州）有限公司 | LED light-emitting module |
| JP5903672B2 (en) * | 2011-05-20 | 2016-04-13 | パナソニックＩｐマネジメント株式会社 | LIGHT EMITTING DEVICE AND LIGHTING DEVICE USING THE SAME |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204313107U (en) * | 2014-11-15 | 2015-05-06 | 青岛歌尔声学科技有限公司 | A kind of LED light source module, LED lamp bar and down straight aphototropism mode set |
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