CN105353444A - Printing-free light guide plate structure - Google Patents
Printing-free light guide plate structure Download PDFInfo
- Publication number
- CN105353444A CN105353444A CN201510777062.8A CN201510777062A CN105353444A CN 105353444 A CN105353444 A CN 105353444A CN 201510777062 A CN201510777062 A CN 201510777062A CN 105353444 A CN105353444 A CN 105353444A
- Authority
- CN
- China
- Prior art keywords
- conducting plate
- plate body
- light conducting
- light
- hemisphere jut
- 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
- 239000000463 material Substances 0.000 claims abstract description 12
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 9
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 description 7
- 238000007598 dipping method Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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
- G02B6/0035—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention provides a printing-free light guide plate structure. The structure comprises a light guide plate body; the light guide plate body includes a light input surface, a light output surface and a bottom surface, wherein a light beam is guided into the light guide plate body via the light input surface, the light input surface is placed in the lateral portion of the light guide plate body, the light beam is guided out of the light guide plate body via the light output surface, and the bottom surface of a planar structure is opposite to the light output surface; multiple spherical projections which are molded with the light guide plate body in an integrated manner are arranged at the light output surface in an array, the spherical projections in the array are arranged in rows and columns in a staggered manner, and the spherical projections are made of a PMMA material; and the diameter of each spherical projection ranges from 180 to200 micron, the height of the spherical projection ranges from 135 to 150 micron, and the spacing between the adjacent spherical projections in each row/column ranges from 225 to 250 micron.
Description
Technical field
The present invention relates to a kind of for liquid crystal display exempt from print light conducting plate structure.
Background technology
In recent years, along with colorize and the maximization of liquid crystal display, its application is more extensive, as notebook, various desk-top computer, LCD TV etc.Because liquid crystal itself does not have the characteristics of luminescence, thus, do not reach display effect, need the light source providing a light-source system as display, as backlight module, backlight module mainly comprises light guide plate, light source, reflector plate and one or more blooming piece.Wherein, light guide plate is the significant components in backlight module, for guiding the transmission direction sending light beam from light source, line source or pointolite is converted to area source injection, for representing the brightness of backlight and display screen, there is again the requirement of printing opacity briliancy and transmission uniformity simultaneously.From back light injection, propagate inside light guide plate, and reflect at dot surface, reflect and be totally reflected, part light is absorbed by light guide plate, and remaining light passes the exiting surface of light guide plate, incides liquid crystal material, by control circuit to realize liquid crystal display.
The general exiting surface of traditional light guide plate is V-type groove or U-type groove structure, bottom surface is ink dot surface, there is following shortcoming: 1. because the groove of exiting surface is micron-sized microstructure, usually need to adopt laser engraving technique to produce, production efficiency is low and cost is higher; 2. its reflection of U-type groove, refraction effect not as V-type groove, and bottom V-shaped groove are tapering structure, and difficulty of processing is large, and very easily occur process defective and affect product quality, therefore this kind of U-type groove or V-type groove more and more can not meet the needs of social development; 3. light guide ink dot surface needs by printing, and in printing process, ink causes environmental pollution, and processing technology is complicated simultaneously, cost is high.
Summary of the invention
The present invention proposes one and exempts to print light conducting plate structure, solves light guide plate processing technology complexity in prior art, trench structure difficulty of processing is large and bright dipping is uneven, needs to print the technical matters of light guide ink site.
Technical scheme of the present invention is achieved in that one is exempted to print light conducting plate structure, comprise light conducting plate body, described light conducting plate body comprises and to be imported by light beam in light conducting plate body and be positioned at the incidence surface of light conducting plate body sidepiece, the exiting surface that light beam is derived in light conducting plate body and the bottom surface relative with exiting surface, described bottom surface is smooth planar structure, on described exiting surface, array arranges multiple hemisphere jut integrated with light conducting plate body, and the hemisphere jut of described array becomes the arranged in form of interlaced multiple lines and multiple rows, described hemisphere jut adopts PMMA material to make, the diameter of described hemisphere jut is 180-200um, and the height of described hemisphere jut is 135-150um, and the spacing between hemisphere jut adjacent in each row and column is 0.225-0.250um.
Wherein, described light conducting plate body adopts PMMA material to make.
Particularly, the thickness of described light conducting plate body is 2.0-3.0mm.
Further, described light conducting plate body is plate shaped.
Further, the plurality of hemisphere jut is staggered equidistantly arranges and structure is identical.
Compared with prior art, beneficial effect of the present invention is: structure is simple, hemisphere jut and hemisphere jut become the arranged in form of the multiple lines and multiple rows of interlaced setting, make that light conducting plate body refractive index is higher, bright dipping evenly, there is not light between hemisphere jut and light conducting plate body and transmit interface, light loss reduces, and light guide plate processing technology is simple; When processing light conducting plate body, to pass through a mould one-body molded for hemisphere jut and light conducting plate body, and production efficiency is high, and processing cost is low; And, the effect of even bright dipping can be reached without the need to printing light guide ink site, working (machining) efficiency is high, Qualified Products Rate is high, cost is low, pollution-free.In addition, the parameter of material to hemisphere jut of light conducting plate body is optimized, and by can improve the light source briliancy that light conducting plate body sends to the optimization of hemisphere jut diameter, height and spacing, and then again improves the light emission rate of light conducting plate body.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram at A position in Fig. 2;
Fig. 4 is beam exit index path in light conducting plate body in the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
See Fig. 1 to Fig. 4, one is exempted to print light conducting plate structure, comprise light conducting plate body 220, described light conducting plate body 220 comprises and to be imported by light beam 300 in light conducting plate body 220 and be positioned at the incidence surface 222 of light conducting plate body 220 sidepiece, the exiting surface 224 that light beam 300 is derived in light conducting plate body 220 and the bottom surface 226 relative with exiting surface 224, described bottom surface 226 is smooth planar structure, one is exempted to print light conducting plate structure, comprise light conducting plate body, described light conducting plate body 220 comprises and to be imported by light beam in light conducting plate body 220 and be positioned at the incidence surface 222 of light conducting plate body 220 sidepiece, the exiting surface 224 that light beam is derived in light conducting plate body 220 and the bottom surface 226 relative with exiting surface 224, described bottom surface 226 is smooth planar structure, on described exiting surface 224, array arranges multiple hemisphere jut 240 integrated with light conducting plate body 220, and the arranged in form of the interlaced multiple lines and multiple rows of the hemisphere jut 240 one-tenth of described array, the plurality of hemisphere jut 240 is staggered equidistantly to be arranged and structure is identical, the arrangement form of this hemisphere jut 240 makes light conducting plate body 220 light emission rate higher, light emission rate is 6kcd/m
2, scattering, bright dipping evenly, homogeneity reaches more than 85%.
Described hemisphere jut adopts PMMA material to make, and its characteristic is as follows:
The diameter of described hemisphere jut 240 is 180-200um, and the height of described hemisphere jut 240 is 135-150um, and the spacing between hemisphere jut 240 adjacent in each row and column is 225-250um.Structure of the present invention is simple, the setting of hemisphere jut 240 and arrangement form make light conducting plate body 220 reflect higher, bright dipping evenly, there is not light between hemisphere jut 240 and light conducting plate body 220 and transmit interface, light loss reduction; Technique is simple, and when processing light conducting plate body 220, hemisphere jut 240 is one-body molded by a mould with light conducting plate body 220, and production efficiency is high, and processing cost is low; And bottom surface 226 can reach the effect of even bright dipping without the need to printing light guide ink site, efficiency is high, Qualified Products Rate is high, cost is low, pollution-free.In addition, the parameter of material to hemisphere jut 240 of light conducting plate body 220 is optimized, by can improve the light source briliancy that light conducting plate body 220 sends to the optimization of hemisphere jut 240 diameter, height and spacing, and then again improve the light emission rate of light conducting plate body 220.
Exiting surface 224 is arranged the plurality of staggered equidistantly layout and the identical hemisphere jut 240 of structure, the material of hemisphere jut 240 be PMMA hemisphere jut 240 diameter, height should be moderate, cross the thickness that conference increases light conducting plate body 220, affect transmittance, the too small dispersion effect that can affect light conducting plate body 220 pairs of light beams 300, finds, when light conducting plate body 220 material is PMMA through measuring, the diameter of hemisphere jut 240 at 180-200um, highly for 135-150um is best; In addition, in each row and column, the spacing of adjacent hemisphere jut 240 is being best for 225-250um, the excessive dispersion effect affecting light guide plate light beam 300, too small mutual interference can occur.In the present embodiment, the diameter of hemisphere jut 240 is 180um, is highly 135um, and the spacing in each row and column between adjacent hemisphere jut 240 is 225um, and light conducting plate body 220 is disk construction, and the thickness of light conducting plate body 220 is 2.0mm.
When exiting surface 224 as light conducting plate body 220 does not arrange hemisphere jut 240, the light beam 300 of bottom surface 226 scattering and reflection is incident with α angle for the exiting surface 224 of light-passing board, and when α angle is less than the angle of total reflection, this light beam 300 penetrates with β angle through exiting surface 224.The present invention arranges hemisphere jut 240 at the exiting surface 224 of light conducting plate body 220, then this light beam 300 is after the arc-shaped curved surface 242 of hemisphere jut 240 is totally reflected, this arc-shaped curved surface 242 γ angle is incident relatively again, and when γ angle is less than the angle of total reflection, light beam 300 penetrates with ε angle through arc-shaped curved surface 242.The high refractive index medium light conducting plate body that this light beam 300 is n (n>1) by refractive index enters the air dielectric that refractive index is 1, formula is: n=sini/sin ω, wherein, n is the refractive index of high refractive index medium, n>1, i is emergence angle, and ω is incident angle.Known, light beam 300 through arc-shaped curved surface 242 penetrate after with perpendicular line angle be greater than light beam 300 after exiting surface 224 outgoing with the angle of perpendicular line, namely the exiting surface 224 of the relative light conducting plate body 220 of the arc-shaped curved surface 242 of hemisphere jut 240 has the function of astigmatism in certain ranges of incidence angles, and this certain ranges of incidence angles depends on the factor such as the refractive index of PMMA material and the radian of arc-shaped curved surface 242.Meanwhile, in formulation diameter L, the radian of this arc-shaped curved surface 242 increases gradually, then the height D protruded deepens gradually, and the emergence angle ε of light beam 300 will increase gradually, and dispersion effect also will be more remarkable.
Embodiment 2
The present embodiment is identical with the structure of embodiment 1, difference is: the diameter of hemisphere jut 240 is 190um, the height of hemisphere jut 240 is 136.8um, and the spacing in each row and column between adjacent hemisphere jut 240 is 237.5um, and the thickness of light conducting plate body 220 is 2.5mm.
Embodiment 3
The present embodiment is identical with the structure of embodiment 1, difference is: the diameter of hemisphere jut 240 is 200um, the height of hemisphere jut 240 is 150um, and often row does not have the spacing in row between adjacent hemisphere jut 240 to be 250um, and the thickness of light conducting plate body 220 is 3.0mm.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. exempt to print light conducting plate structure for one kind, comprise light conducting plate body, described light conducting plate body comprises and to be imported by light beam in light conducting plate body and be positioned at the incidence surface of light conducting plate body sidepiece, the exiting surface of being derived from light conducting plate body by light beam and the bottom surface relative with exiting surface, it is characterized in that: described bottom surface is smooth planar structure, on described exiting surface, array arranges multiple hemisphere jut integrated with light conducting plate body, and the hemisphere jut of described array becomes the arranged in form of interlaced multiple lines and multiple rows, described hemisphere jut adopts PMMA material to make;
The diameter of described hemisphere jut is 180-200um, and the height of described hemisphere jut is 135-150um, and the spacing between adjacent hemisphere jut is 225-250um.
2. one according to claim 1 is exempted to print light conducting plate structure, it is characterized in that: described light conducting plate body adopts PMMA material to make.
3. one according to claim 1 and 2 is exempted to print light conducting plate structure, it is characterized in that: the thickness of described light conducting plate body is 2.0-3.0mm.
4. one as claimed in any of claims 1 to 3 is exempted to print light conducting plate structure, it is characterized in that: described light conducting plate body is plate shaped.
5. one according to claim 1 is exempted to print light conducting plate structure, it is characterized in that: the plurality of hemisphere jut is staggered equidistantly to be arranged and structure is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510777062.8A CN105353444A (en) | 2015-11-13 | 2015-11-13 | Printing-free light guide plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510777062.8A CN105353444A (en) | 2015-11-13 | 2015-11-13 | Printing-free light guide plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105353444A true CN105353444A (en) | 2016-02-24 |
Family
ID=55329444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510777062.8A Pending CN105353444A (en) | 2015-11-13 | 2015-11-13 | Printing-free light guide plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105353444A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588388Y (en) * | 2002-12-28 | 2003-11-26 | 鸿富锦精密工业（深圳）有限公司 | Light conducting board device |
| CN1501138A (en) * | 2002-11-18 | 2004-06-02 | 鸿富锦精密工业（深圳）有限公司 | Light transmitting board for backlight module |
| CN1734324A (en) * | 2004-08-02 | 2006-02-15 | 凛宜股份有限公司 | Light guide plate with analogous triangular prism structure |
| CN1916723A (en) * | 2005-08-19 | 2007-02-21 | 鸿富锦精密工业（深圳）有限公司 | Plate of guiding light, and backlight module |
| CN201107519Y (en) * | 2007-10-30 | 2008-08-27 | 亚通光电科技(深圳)有限公司 | Backlight module with dot structure |
| US20100296021A1 (en) * | 2009-05-25 | 2010-11-25 | Samsung Electronics Co., Ltd. | Backlight unit and liquid crystal display apparatus having the same |
| CN102734712A (en) * | 2012-07-12 | 2012-10-17 | 东莞市奕东电子有限公司 | LED (Light-Emitting Diode) backlight module and microstructure machining method thereof |
| CN202870335U (en) * | 2011-11-30 | 2013-04-10 | 深圳市百得力电子有限公司 | Light guide plate with dots |
| CN203224640U (en) * | 2013-03-22 | 2013-10-02 | 重庆翎创福光电科技股份有限公司 | Light guide plate with excellent light guiding properties |
-
2015
- 2015-11-13 CN CN201510777062.8A patent/CN105353444A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1501138A (en) * | 2002-11-18 | 2004-06-02 | 鸿富锦精密工业（深圳）有限公司 | Light transmitting board for backlight module |
| CN2588388Y (en) * | 2002-12-28 | 2003-11-26 | 鸿富锦精密工业（深圳）有限公司 | Light conducting board device |
| CN1734324A (en) * | 2004-08-02 | 2006-02-15 | 凛宜股份有限公司 | Light guide plate with analogous triangular prism structure |
| CN1916723A (en) * | 2005-08-19 | 2007-02-21 | 鸿富锦精密工业（深圳）有限公司 | Plate of guiding light, and backlight module |
| CN201107519Y (en) * | 2007-10-30 | 2008-08-27 | 亚通光电科技(深圳)有限公司 | Backlight module with dot structure |
| US20100296021A1 (en) * | 2009-05-25 | 2010-11-25 | Samsung Electronics Co., Ltd. | Backlight unit and liquid crystal display apparatus having the same |
| CN202870335U (en) * | 2011-11-30 | 2013-04-10 | 深圳市百得力电子有限公司 | Light guide plate with dots |
| CN102734712A (en) * | 2012-07-12 | 2012-10-17 | 东莞市奕东电子有限公司 | LED (Light-Emitting Diode) backlight module and microstructure machining method thereof |
| CN203224640U (en) * | 2013-03-22 | 2013-10-02 | 重庆翎创福光电科技股份有限公司 | Light guide plate with excellent light guiding properties |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |