CN108627903A - A kind of light emission rate is high and smooth surface uniformly, the light guide plate of no visual spot - Google Patents
A kind of light emission rate is high and smooth surface uniformly, the light guide plate of no visual spot Download PDFInfo
- Publication number
- CN108627903A CN108627903A CN201710158534.0A CN201710158534A CN108627903A CN 108627903 A CN108627903 A CN 108627903A CN 201710158534 A CN201710158534 A CN 201710158534A CN 108627903 A CN108627903 A CN 108627903A
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- CN
- China
- Prior art keywords
- guide plate
- light
- light guide
- emission rate
- sides
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- 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.)
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Classifications
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention belongs to light guide plate technical fields, more particularly to a kind of light emission rate high and smooth surface uniformly, the light guide plate of no visual spot, it includes light guide plate, the both sides of a pair of opposing of light guide plate are light source side, the scattering surface of light guide plate is shiny surface and is densely covered with multiple sites, the exit facet of light guide plate is the relief in cos curve-like periodic undulations, and two light source sides are located at both ends of the relief in heave direction；The spacing for the two neighboring site that light in both sides is injected on direction is gradually reduced from two light source sides to the center line of light guide plate respectively.The beneficial effects of the invention are as follows：Even if being stained with dust on the relief of light guide plate, white point, bright spot, the spot etc. that will not be observed on relief ensure that lamps and lanterns beauty, and do not influence light emission rate；Dot density is increased by two lateral centers, considerably increases the scattering area of site, therefore light emission rate is high；The light of injection is visibly homogeneous.
Description
Technical field
The invention belongs to light guide plate technical fields, and in particular to a kind of light emission rate is high and smooth surface is uniform, no visual spot
Light guide plate.
Background technology
Light guide plate is the critical optical device of flat lamp, its effect is the light that the light source that side is shone is sent out, and is passed through
The importing of light guide plate, from light guide plate side into light direction, by the repeatedly light variation such as incidence, refraction, reflection, diffusing reflection,
Become, relative to the straight to shining of flat lamp plane, from the front outgoing of light guide plate, to generate illumination functions, to illuminate ring around
Border.In order to realize light-guiding function, on two smooth surfaces of light guide plate, in one side wherein, by the method for silk-screen printing,
Many ink dots are printed, these dots are exactly the site of light guide plate.Light-emitting surface (the outgoing of the light guide plate of traditional structure
Face) be often stained with dust, therefore after being lighted in lamps and lanterns, observe light-emitting surface (exit facet), often occur small white point, bright spot,
Spot etc. causes smooth surface portion uniform, not only influences appearance, but also influence light emission rate.Further, since existing light guide plate gap size one
It causes, and light is constantly scattered on the site on propagation path, therefore the side of the symmetrical center line in directive light guide plate
Upward luminous flux is gradually decayed, to the light and uneven that light emission rate is relatively low and projects.
Invention content
The purpose of the present invention is overcoming defect of the existing technology, adhered on a kind of relief of light guide plate even if providing
There is dust, white point, bright spot, the spot etc. that will not be observed on relief ensure that lamps and lanterns beauty, and do not influence light extraction
Rate；Dot density is increased by two lateral centers, considerably increases the scattering area of site, the visibly homogeneous light extraction of the light of injection
Rate is high and smooth surface uniformly, the light guide plate of no visual spot.
The technical solution adopted by the present invention to solve the technical problems is：A kind of light emission rate is high and smooth surface uniformly, no visual
The light guide plate of spot comprising the both sides of light guide plate, a pair of opposing of light guide plate are light source side, and the scattering surface of light guide plate is
Shiny surface and multiple sites are densely covered with, the exit facet of light guide plate is the relief in cos curve-like periodic undulations, two light sources
Side is located at both ends of the relief in heave direction；Light in both sides injects the spacing difference of the two neighboring site on direction
It is gradually reduced from two light source sides to the center line of light guide plate.
After the present invention injects light from two light source sides, after being scattered on each site on shiny surface, dissipated from relief
It is shot out.Since the light of relief undulate, scattering can further change direction again, light is further to four
Week, to external diffusion, therefore even if being stained with dust on the relief of light guide plate, will not be observed white point on relief,
Bright spot, spot etc. ensure that lamps and lanterns beauty, and do not influence light emission rate.It is again adjacent on direction due to being injected in the light of both sides
The spacing of two sites is gradually reduced from two light source sides to the center line of light guide plate respectively, be equivalent to dot density by two it is lateral in
Centre increases, and considerably increases the scattering area of site, therefore light emission rate is high.Even if the side of the symmetrical center line in directive light guide plate
Upward luminous flux is gradually decayed, but since dot density is by two lateral center increases, the light projected can be visibly homogeneous.
Specifically, the light of both sides inject direction on two neighboring site diameter at two light source sides to leaded light
It is incrementally increased on the center line of plate；Further increase the scattering area of site, light emission rate higher.
Preferably, the two neighboring wave crest apogee distance of relief is 2.5-4.5 microns, peaks and troughs vertical range
Be 0.5-2.5 microns, light-out effect more preferably, evenly, light emission rate higher.
Further, the material of light guide plate is acrylic organic glass, PS plastic or MS plastics, facilitates silk-screen printing site
Or laser engraving.
A kind of light emission rate of the present invention is high and smooth surface uniformly, the advantageous effect of the light guide plate of no visual spot be：
1. due to relief undulate, the light of scattering can further change direction again, and light is further
Around, it to external diffusion, therefore even if being stained with dust on the relief of light guide plate, will not be observed white on relief
Point, bright spot, spot etc. ensure that lamps and lanterns beauty, and do not influence light emission rate；
2. again due to the light of both sides inject direction on two neighboring site spacing respectively from two light source sides to
The center line of light guide plate gradually reduces, and is equivalent to dot density and is increased by two lateral centers, considerably increases the scattering surface of site
Product, therefore light emission rate is high；
3. even if the luminous flux on the direction of the symmetrical center line of directive light guide plate is gradually decayed, but due to dot density
Increased by two lateral centers, therefore the light projected can be visibly homogeneous.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the schematic three dimensional views one of a kind of light emission rate height of the present invention and uniform, no visual spot the light guide plate of smooth surface；
Fig. 2 is the schematic three dimensional views two of a kind of light emission rate height of the present invention and uniform, no visual spot the light guide plate of smooth surface；
Fig. 3 is the overall structure vertical view of a kind of light emission rate height of the present invention and uniform, no visual spot the light guide plate of smooth surface.
Wherein:1. shiny surface；2. relief；3. light source side.
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
The tool of uniform, no visual spot the light guide plate of a kind of light emission rate height and smooth surface of the present invention as shown in FIG. 1 to FIG. 3
Body embodiment comprising the both sides of light guide plate, a pair of opposing of light guide plate are light source side 3, and the scattering surface of light guide plate is light
Sliding surface 1 and multiple sites are densely covered with, the exit facet of light guide plate is the relief 2 in cos curve-like periodic undulations, two light sources
Side 3 is located at both ends of the relief 2 in heave direction；Light in both sides injects the spacing point of the two neighboring site on direction
It is not gradually reduced from two light source sides 3 to the center line of light guide plate.
After the present embodiment injects light from two light source sides 3, after being scattered on each site on shiny surface 1, from relief 2
On scatter out.Since the light of 2 undulate of relief, scattering can further change direction again, light is further
Around, it to external diffusion, therefore even if being stained with dust on the relief 2 of light guide plate, will not be observed white on relief 2
Point, bright spot, spot etc. ensure that lamps and lanterns beauty, and do not influence light emission rate.It is again adjacent on direction due to being injected in the light of both sides
The spacing of two sites is gradually reduced from two light source sides 3 to the center line of light guide plate respectively, and it is lateral by two to be equivalent to dot density
Center increases, and considerably increases the scattering area of site, therefore light emission rate is high.Even if the side of the symmetrical center line in directive light guide plate
Upward luminous flux is gradually decayed, but since dot density is by two lateral center increases, the light projected can be visibly homogeneous.
Specifically, the diameter of the two neighboring site on direction is injected at two light source sides 3 to leading in the light of both sides
It is incrementally increased on the center line of tabula rasa；Further increase the scattering area of site, light emission rate higher.
Preferably, the two neighboring wave crest apogee distance of relief 2 be 2.5-4.5 microns, peaks and troughs vertically away from
From being 0.5-2.5 microns, light-out effect more preferably, evenly, light emission rate higher.
Further, the material of light guide plate is acrylic organic glass, PS plastic or MS plastics, facilitates silk-screen printing site
Or laser engraving.
Preferably, at each light source side 3 to being equipped with the sites 1-155 on the center line of light guide plate successively, such as following table 1
Site diameter value.
The diameter value table of 1. sites 1-155 of table
The above-mentioned site cloth of the present embodiment postpones, uniform light, and light emission rate is high.
It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By
The obvious changes or variations that the spirit of the present invention is extended out are still in the protection scope of this invention.
Claims (4)
1. a kind of light emission rate is high and smooth surface uniformly, the light guide plate of no visual spot, it is characterised in that：It is described to lead including light guide plate
The both sides of a pair of opposing of tabula rasa are light source side (3), and the scattering surface of the light guide plate is shiny surface (1) and is densely covered with multiple
Site, the exit facet of the light guide plate are the relief (2) in cos curve-like periodic undulations, and two light source sides (3) are located at
Both ends of the underlying surface (2) in heave direction；Light in both sides injects the spacing of the two neighboring site on direction respectively from two
A light source side (3) gradually reduces to the center line of light guide plate.
2. a kind of light emission rate according to claim 1 is high and smooth surface uniformly, the light guide plate of no visual spot, feature exists
In：The diameter of two neighboring site on the light injection direction of both sides is at two light source sides (3) to the center of light guide plate
It is incrementally increased on line.
3. a kind of light emission rate according to claim 2 is high and smooth surface uniformly, the light guide plate of no visual spot, feature exists
In：The two neighboring wave crest apogee distance of the relief (2) is 2.5-4.5 microns, and peaks and troughs vertical range is
0.5-2.5 microns.
4. a kind of light emission rate according to any one of claim 1-3 is high and smooth surface uniformly, the light guide plate of no visual spot,
It is characterized in that：The material of the light guide plate is acrylic organic glass, PS plastic or MS plastics.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710158534.0A CN108627903A (en) | 2017-03-17 | 2017-03-17 | A kind of light emission rate is high and smooth surface uniformly, the light guide plate of no visual spot |
| PCT/CN2017/079693 WO2018166007A1 (en) | 2017-03-17 | 2017-04-07 | Light guide plate having high light exit efficiency, uniform light surface, and no visual spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710158534.0A CN108627903A (en) | 2017-03-17 | 2017-03-17 | A kind of light emission rate is high and smooth surface uniformly, the light guide plate of no visual spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108627903A true CN108627903A (en) | 2018-10-09 |
Family
ID=63521627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710158534.0A Pending CN108627903A (en) | 2017-03-17 | 2017-03-17 | A kind of light emission rate is high and smooth surface uniformly, the light guide plate of no visual spot |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108627903A (en) |
| WO (1) | WO2018166007A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627904A (en) * | 2017-03-17 | 2018-10-09 | 江苏日月照明电器有限公司 | A kind of flat lamp light guide plate mesh point arrangement that light emission rate is big |
| CN108627904B (en) * | 2017-03-17 | 2024-05-31 | 江苏日月照明电器有限公司 | Flat lamp light guide plate mesh point arrangement structure with high light yield |
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| CN202102136U (en) * | 2011-05-24 | 2012-01-04 | 深圳市德仓科技有限公司 | Light guide plate and backlight module |
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| CN202102136U (en) * | 2011-05-24 | 2012-01-04 | 深圳市德仓科技有限公司 | Light guide plate and backlight module |
| CN202330759U (en) * | 2011-11-21 | 2012-07-11 | 深圳市德仓科技有限公司 | Light guide plate and backlight module |
| CN203037888U (en) * | 2012-09-05 | 2013-07-03 | 深圳市德仓科技有限公司 | Light guide plate and backlight module |
| WO2014131290A1 (en) * | 2013-02-26 | 2014-09-04 | She Xiaofeng | Composite light guide plate and production method thereof |
| TW201541130A (en) * | 2014-04-21 | 2015-11-01 | K J Applied Materials Co Ltd | Light guide plate structure |
| US20160047967A1 (en) * | 2014-08-18 | 2016-02-18 | New Optics, Ltd | Light guide plate, and backlight unit and display device including the same |
| CN205317976U (en) * | 2015-12-23 | 2016-06-15 | 重庆鑫翎创福光电科技股份有限公司 | Light guide plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627904A (en) * | 2017-03-17 | 2018-10-09 | 江苏日月照明电器有限公司 | A kind of flat lamp light guide plate mesh point arrangement that light emission rate is big |
| CN108627904B (en) * | 2017-03-17 | 2024-05-31 | 江苏日月照明电器有限公司 | Flat lamp light guide plate mesh point arrangement structure with high light yield |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018166007A1 (en) | 2018-09-20 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181009 |
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| RJ01 | Rejection of invention patent application after publication |