CN103293587A - Light guiding plate and manufacturing method - Google Patents
Light guiding plate and manufacturing method Download PDFInfo
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- CN103293587A CN103293587A CN2012100402392A CN201210040239A CN103293587A CN 103293587 A CN103293587 A CN 103293587A CN 2012100402392 A CN2012100402392 A CN 2012100402392A CN 201210040239 A CN201210040239 A CN 201210040239A CN 103293587 A CN103293587 A CN 103293587A
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- guide plate
- light guide
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Abstract
The invention relates to a light guiding plate which comprises a light emergent face, a bottom face and a light incident face. The bottom face and the light emergent face are arranged oppositely. The light incident face is connected with the light emergent face and the bottom face. Multiple recessed hemispherical net points which are arranged in a matrix shape are evenly distributed on the bottom face. A ratio of the diameter of each net point and the depth of each net point is 10:1.The whole brightness value of the light emergent face of the light guiding plate is effectively improved. The invention further relates to a manufacturing method of the light guiding plate.
Description
Technical field
The present invention relates to a kind of light guide plate and manufacture method thereof, relate in particular to a kind of light guide plate and manufacture method thereof that adopts side-mounted illumination.
Background technology
Present light guide plate generally is to convex with a plurality of sites with the exiting surface opposed bottom surface, but 13 optical brightness values of described light guide plate are not high.Wherein 13 optical brightness values are to weigh the important parameter of the optical property of light guide plate, mainly be that exiting surface with light guide plate is divided into the block that 20 areas equate, measure the wherein optical brightness value of specific 13 blocks, then with the mean value of the optical brightness value of described 13 blocks overall brightness value as the exiting surface of described light guide plate.
Summary of the invention
In view of this, be necessary to provide a kind of light guide plate and manufacture method thereof that can effectively improve the overall brightness value of exiting surface.
A kind of light guide plate, it comprises an exiting surface, a bottom surface and an incidence surface, described bottom surface and described exiting surface are oppositely arranged, and described incidence surface connects described exiting surface and described bottom surface, are evenly distributed with a plurality of hemispherical sites that are the indent of rectangular arrangement on the described bottom surface.The diameter of each site and the ratio of the degree of depth are 10:1.
A kind of manufacturing method of light conducting board, it comprises the steps:
One gypsum is provided, and described gypsum has first a plane forming surface, and processes a plurality of rectangular hemispherical grooves of arranging that are in described first forming surface, and the diameter of each groove and the ratio of the degree of depth are 10:1;
The metal of a rectangular-shaped container and molten state is provided, described container has an opening, gypsum after the processing is placed in the described container, and described first forming surface is towards described opening, metal with described molten state injects in the described container by described opening then, wait for described metal be cooled to solid-state after, the metal of moulding is taken out, the metal of described moulding comprises second forming surface, and described second forming surface is formed with a plurality of rectangular hemispherical protuberances of arranging that are;
The metal of described moulding is put into a Jet forming machine as a die, in described Jet forming machine, inject the light guide plate starting material of fusion, adopt the method for ejection formation to produce described light guide plate.
Compared with prior art, because light arc reflected directly into described exiting surface run into the site of indent in the transmittance process in described light guide plate after, therefore the path of light transmission in light guide plate of the present invention shortens, the energy loss of light reduces, and makes that the overall brightness value of described exiting surface is effectively improved.
Description of drawings
Fig. 1 is the structural representation of the light guide plate of preferred embodiments of the present invention.
Fig. 2 is the process flow diagram of the manufacturing method of light conducting board of Fig. 1.
The main element symbol description
| |
10 |
| Exiting |
11 |
| The |
13 |
| The |
130 |
| |
15 |
| The |
17 |
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1, be a kind of light guide plate 10 that embodiment of the present invention provides, it is rectangular-shaped, and makes (such as acryl resin, polycarbonate, polyvinyl resin etc.) by transparent material.Described light guide plate 10 comprises an exiting surface 11, a bottom surface 13, an incidence surface 15 and a side 17.Described bottom surface 13 is oppositely arranged with described exiting surface 11, and described bottom surface 13 is parallel to each other with described exiting surface 11.Described incidence surface 15 connects described exiting surface 11 and described bottom surfaces 13, and described incidence surface 15 is perpendicular with described exiting surface 11.Described side 17 connects described exiting surface 11 and described bottom surface 13, and arranges towards described incidence surface 15.In other embodiments, described light guide plate 10 also can be the plate wedge shape, that is to say, described bottom surface 13 is obliquely installed with respect to described exiting surface 11.
The light that described incidence surface 15 is used for described light source 20 is launched imports described light guide plate 10.Described bottom surface 13 is used for being incident upon its surperficial light to be reflected, and penetrates from described light guide plate 10 to prevent light, improves the utilization factor of light.Described exiting surface 11 is derived described light guide plate 10 for the part that will incide its surperficial light, another part reflexes on the described bottom surface 13, make light to be delivered to an end at 17 places, described side with the end from described incidence surface 15 places by repeatedly reflection in described light guide plate 10.Described side 17 is used for inciding its surperficial light to be reflected, and penetrates from described light guide plate 10 to prevent light.
Described bottom surface 13 is provided with equally distributed microstructure, and described microstructure is the hemispherical site 130 of a plurality of indents, and described a plurality of site 130 is rectangular and arranges.The diameter of each site 130 and the ratio of the degree of depth are 10:1.In the present embodiment, the diameter of each site 130 is 50 μ m, and the degree of depth of each site 130 is 5 μ m.
13 optical brightness values of described light guide plate 10 and average brightness are shown in table ().
Table (one)
| The position | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Brightness (Nits) | 3243.99 | 3312.85 | 3264.64 | 3563.71 | 3601.11 | 3341.21 | 3817.85 |
| The position | 8 | 9 | 10 | 11 | 12 | 13 | Average brightness |
| Brightness (Nits) | 3304.39 | 3644.97 | 3697.85 | 3177.74 | 3622.87 | 3173.21 | 3443.57 |
And 13 optical brightness values of the light guide plate in the background technology and average brightness are shown in table (two).
Table (two)
| The position | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Brightness (Nits) | 2911.19 | 2990.00 | 2949.10 | 3255.65 | 3281.80 | 2982.63 | 3423.27 |
| The position | 8 | 9 | 10 | 11 | 12 | 13 | Average brightness |
| Brightness (Nits) | 2910.14 | 3350.53 | 3264.19 | 2847.53 | 3206.61 | 2825.81 | 3092.19 |
Comparison sheet (one) and the table (two) as can be known, the brightness value of 13 positions and average brightness value are all a lot of than the leaded light plate hight in the background technology on the light guide plate 10 of the present invention, that is to say, the brightness value of the exiting surface 11 of light guide plate 10 of the present invention is effectively improved.
As shown in Figure 2, the manufacturing method of light conducting board that provides of present embodiment comprises the steps:
S1: a gypsum is provided, and described gypsum has first a plane forming surface, and processes a plurality of rectangular hemispherical grooves of arranging that are with the method for Laser Processing in described first forming surface.The diameter of each groove and the ratio of the degree of depth are 10:1.In the present embodiment, the diameter of each groove is 50 μ m, and the degree of depth of each groove is 5 μ m.
S2: the metal that a rectangular-shaped container and molten state are provided, described container has an opening, gypsum after the processing is placed in the described container, and described first forming surface is towards described opening, metal with described molten state injects in the described container by described opening then, wait for described metal be cooled to solid-state after, the metal of moulding is taken out, the metal of described moulding comprises second forming surface, the shape of described second forming surface and the described first forming surface complementation make to be formed with a plurality of rectangular hemispherical protuberances of arranging that are on described second forming surface.
S3: the metal of described moulding is put into a Jet forming machine as a die, in described Jet forming machine, inject the light guide plate starting material of fusion, adopt the method for ejection formation to produce described light guide plate.
Compared with prior art, because light arc reflected directly into described exiting surface run into the site of indent in the transmittance process in described light guide plate after, therefore the path of light transmission in light guide plate of the present invention shortens, the energy loss of light reduces, and makes that the overall brightness value of described exiting surface is effectively improved.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (5)
1. light guide plate, it comprises an exiting surface, a bottom surface and an incidence surface, described bottom surface and described exiting surface are oppositely arranged, described incidence surface connects described exiting surface and described bottom surface, be evenly distributed with a plurality of hemispherical sites that are the indent of rectangular arrangement on the described bottom surface, the diameter of each site and the ratio of the degree of depth are 10:1.
2. light guide plate as claimed in claim 1, it is characterized in that, described light guide plate also comprises a side, described side and described incidence surface are oppositely arranged, and connect described exiting surface and described bottom surface, be used for to incide its surperficial light and reflect, prevent that described light from penetrating from described light guide plate.
3. light guide plate as claimed in claim 1 is characterized in that, described incidence surface and described exiting surface are perpendicular.
4. manufacturing method of light conducting board, it comprises the steps:
One gypsum is provided, and described gypsum has first a plane forming surface, and processes a plurality of rectangular hemispherical grooves of arranging that are in described first forming surface, and the diameter of each groove and the ratio of the degree of depth are 10:1;
The metal of a rectangular-shaped container and molten state is provided, described container has an opening, gypsum after the processing is placed in the described container, and described first forming surface is towards described opening, metal with described molten state injects in the described container by described opening then, wait for described metal be cooled to solid-state after, the metal of moulding is taken out, the metal of described moulding comprises second forming surface, and described second forming surface is formed with a plurality of rectangular hemispherical protuberances of arranging that are;
The metal of described moulding is put into a Jet forming machine as a die, in described Jet forming machine, inject the light guide plate starting material of fusion, adopt the method for ejection formation to produce described light guide plate.
5. manufacturing method of light conducting board as claimed in claim 4 is characterized in that, the method by Laser Processing processes described groove in described first forming surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100402392A CN103293587A (en) | 2012-02-22 | 2012-02-22 | Light guiding plate and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100402392A CN103293587A (en) | 2012-02-22 | 2012-02-22 | Light guiding plate and manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103293587A true CN103293587A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100402392A Pending CN103293587A (en) | 2012-02-22 | 2012-02-22 | Light guiding plate and manufacturing method |
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| CN (1) | CN103293587A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044833A (en) * | 2015-09-11 | 2015-11-11 | 上海向隆电子科技有限公司 | Light guide plate and manufacturing method of lattice patterns of light guide plate |
| CN105353439A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Light guide particle free light guide plate structure |
| CN106932851A (en) * | 2015-12-31 | 2017-07-07 | 佛山市顺德区德联邦盛光电科技有限公司 | A kind of pair of concave surface light guide plate of round dot |
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| US5644431A (en) * | 1990-05-18 | 1997-07-01 | University Of Arkansas, N.A. | Directional image transmission sheet and method of making same |
| CN101308225A (en) * | 2007-05-18 | 2008-11-19 | 鸿富锦精密工业（深圳）有限公司 | Backlight module group and its optical plate |
| CN101909841A (en) * | 2007-11-19 | 2010-12-08 | 3M创新有限公司 | Articles and methods of making articles having a concavity or convexity |
| CN102129097A (en) * | 2010-12-28 | 2011-07-20 | 友达光电股份有限公司 | Backlight module, light guide device and light guide plate manufacturing method |
-
2012
- 2012-02-22 CN CN2012100402392A patent/CN103293587A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5644431A (en) * | 1990-05-18 | 1997-07-01 | University Of Arkansas, N.A. | Directional image transmission sheet and method of making same |
| CN101308225A (en) * | 2007-05-18 | 2008-11-19 | 鸿富锦精密工业（深圳）有限公司 | Backlight module group and its optical plate |
| CN101909841A (en) * | 2007-11-19 | 2010-12-08 | 3M创新有限公司 | Articles and methods of making articles having a concavity or convexity |
| CN102129097A (en) * | 2010-12-28 | 2011-07-20 | 友达光电股份有限公司 | Backlight module, light guide device and light guide plate manufacturing method |
Non-Patent Citations (1)
| Title |
|---|
| 黄皇齐: "应用UV-LIGA于导光板模仁之制作研究", 《国立高雄应用科技大学硕士学位论文》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044833A (en) * | 2015-09-11 | 2015-11-11 | 上海向隆电子科技有限公司 | Light guide plate and manufacturing method of lattice patterns of light guide plate |
| CN105353439A (en) * | 2015-11-13 | 2016-02-24 | 重庆鑫翎创福光电科技股份有限公司 | Light guide particle free light guide plate structure |
| CN106932851A (en) * | 2015-12-31 | 2017-07-07 | 佛山市顺德区德联邦盛光电科技有限公司 | A kind of pair of concave surface light guide plate of round dot |
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Application publication date: 20130911 |
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