CN101021576A - Optical component capable of improving light glow - Google Patents
Optical component capable of improving light glow Download PDFInfo
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- CN101021576A CN101021576A CN 200610004699 CN200610004699A CN101021576A CN 101021576 A CN101021576 A CN 101021576A CN 200610004699 CN200610004699 CN 200610004699 CN 200610004699 A CN200610004699 A CN 200610004699A CN 101021576 A CN101021576 A CN 101021576A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 51
- 239000000758 substrate Substances 0.000 claims description 32
- 238000009792 diffusion process Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 6
- 238000002834 transmittance Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 238000001659 ion-beam spectroscopy Methods 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 238000007738 vacuum evaporation Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The invention is an optical component able to improve bright line phenomenon of light, having a light incoming surface and a light outgoing surface so that the light can pass the optical component, and the optical component comprises at least a microstructure layer arranged on one of the light incoming and outgoing surfaces and having plural separate microregions and at least a complete microregion, where the complete microregion is more than each one of the separate microregions, and these separate microregions and the complete microregion compose a preset pattern to change the light transmission ratio of the optical component so as to improve the bright line phenomenon of light. And the microstructure layer can also reflect part of the light to the original light path for reuse to increase the whole lighting efficiency of the optical component.
Description
[technical field]
The present invention such as optical diffusion film sheet, diffuser plate, concentration piece or the like optical element, and is particularly to a kind of optical element that improves light bright line (light and shade band) phenomenon relevant for a kind of.
[background technology]
Prior art as shown in Figure 1, antistatic layer 2b that light diffusing sheet 1 has transparent substrate 2, the diffusion layer 2a that is provided with in a surface of substrate 2, is provided with in another surface of substrate 2, light is entered towards the opposite face (incidence surface) on the surface of substrate 2 by antistatic layer 2b, by substrate 2, penetrated towards the opposite face (exiting surface) on the surface of substrate 2 by diffusion layer 2a, the light by light diffusing sheet 1 produces even scattering phenomenon because of the structure of diffusion layer 2a again.
When light diffusing sheet 1 is applied to module backlight, because the needs in module actual design backlight and the structure utilization, make light can produce interference, and the outgoing light homogeneity that causes light diffusing sheet 1 exiting surface is not consistent completely, form light and shade band (bright line), especially with the most serious in the side-light type module backlight that is applied to use, so still do not have correlation technique at present and can overcome this problem for small-size liquid crystal displays.
And for example Fig. 2 prints a banded black shielding layer 2c in the invalid luminous zone at the diffusion layer 2a of light diffusing sheet 3 (or antistatic layer 2b) edge, in order to cover or to reduce the light leak and the light and shade band of module backlight edge.But this kind way can't be improved for the light and shade band that occurs in effective light-emitting zone, and only shielding function is arranged, and uncontrollable its light throughput also can't be utilized light reflected back primary light path again, and whole lighting efficiency is descended.
[summary of the invention]
Fundamental purpose of the present invention is for providing a kind of optical element that improves light glow, present at optical element light and shade inequality (bright line) any zone (viewing area and not visible zone) go up or lower surface at least one microstructured layers is set, make luminous flux attenuation by microstructured layers, and reaching the function of improving that reduces or eliminates light and shade inequality (bright line), this microstructured layers can apply on such as optical diffusion film sheet, diffuser plate, concentration piece or the like optical element.
Another purpose of the present invention is to provide a kind of optical element that improves light glow, and the microstructured layers that is arranged on the optical element can be utilized light portion reflected back primary light path once more, can promote the whole lighting efficiency of optical element.
Another object of the present invention is to provide a kind of optical element that improves light glow, the microstructured layers that is arranged on the optical element has light transmission, when light passes through this microstructured layers, will produce the diffusion phenomenon, and then make the luminous more even of this zone in each angle of visibility.
The optical element that improves light glow of the present invention, it has an incidence surface and an exiting surface, can pass through this optical element via this incidence surface to exiting surface for light, and it is characterized in that: this optical element comprises:
At least one microstructured layers, be arranged on the one side of this incidence surface or exiting surface, this at least one microstructured layers has a plurality of film micro areas that separate and film micro area that at least one is complete, this complete film micro area is greater than the film micro area that respectively separates, and film micro area that should be separately cooperates with complete film micro area and forms a predetermined pattern.
According to an aspect of of the present present invention, a kind of optical element that improves light glow has an incidence surface and an exiting surface, can pass through this optical element to exiting surface via this incidence surface for light, this optical element comprises at least one microstructured layers, be arranged on the one side of this incidence surface or exiting surface, this at least one microstructured layers has a plurality of film micro areas that separate and film micro area that at least one is complete, this complete film micro area is greater than the film micro area that respectively separates, film micro area that should be separately cooperates with complete film micro area and forms a predetermined pattern, improve light glow in order to change the transmittance of this optical element, to use.
The optical element that improves light glow of the present invention, having can be with the microstructure of light-shielding, reflection, diffusion, being particularly useful for LED is the optical devices module for example backlight of light emitting source, can overcome light and shade band (bright line) problem that these optical devices are produced because of the light-emitting area brightness disproportionation.
[description of drawings]
Fig. 1 is the schematic configuration diagram of known light diffusing sheet;
Fig. 2 is known schematic configuration diagram with light diffusing sheet of edge shielding layer;
Fig. 3 A is the schematic configuration diagram of light diffusing sheet of the improved light glow of first embodiment of the invention; Fig. 3 B is the partial enlarged drawing of Fig. 3 A.
Fig. 4 A is the schematic configuration diagram of light diffusing sheet of the improved light glow of second embodiment of the invention.Fig. 4 B is the partial enlarged drawing of Fig. 4 A.
[embodiment]
In order to allow above-mentioned purpose of the present invention, functional character and advantage understand by clearer and more definite quilt, hereinafter with the present invention with preferable example, and cooperate appended graphicly, be described in detail below;
Please refer to shown in Fig. 3 A, the 3B, the microstructured layers 2d that the light diffusing sheet 4 of the improved light glow of first embodiment of the invention comprises substrate 2, the diffusion layer 2a that is provided with in a surface of substrate 2, the antistatic layer 2b that are provided with in substrate 2 another surfaces, the opposite face (incidence surface) on 2 surface is provided with in antistatic layer 2b towards substrate, perhaps microstructured layers 2d can be arranged at the opposite face (exiting surface) of diffusion layer 2a towards the surface of substrate 2.
Microstructured layers 2d is provided with according to the zone of actual bright line generation, it has the film micro area 2e that separates of a plurality of opaque or partially transparents, and has a complete film micro area 2f of an opaque or partially transparent, a plurality of film micro area 2e that separate line up multiple row from the bottom to top, the film micro area 2e that respectively separates be shaped as circle and the size identical, spacing between the spacing between each film micro area 2e that separates adjacent in being listed as and the film micro area 2e that separate of adjacent two row gradually changes from bottom to top, complete film micro area 2f be positioned at two row film micro area 2e separately between and be the film micro area 2e that is designed to greater than respectively separating, therefore complete film micro area 2f cooperates with a plurality of film micro area 2e that separate and forms a specific pattern of density variation.
Fig. 3 A, 3B are that complete film micro area 2f of illustration cooperates with a plurality of film micro area 2e that separate, so can be according to the actual requirements, use two or more a plurality of complete film micro area, and the shape of the film micro area that each is complete, size or can be changed with spacing between the adjacent film micro area that separates are to form the various specific pattern that density changes.
Therefore, by changing the density that film micro area 2e that separates among the microstructured layers 2d and complete film micro area 2f arrange, make microstructured layers 2d have the transmittance of setting, can change the throughput of light, this regional transmittance is changed, control the distribution of light in bright line zone, and reach the purpose of improving that reduces or eliminates bright line.In addition,, or change its density and transparency simultaneously, also can reach identical purpose by the transparency that changes film micro area 2e separately and complete film micro area 2f.
The uvioresistant printing ink that film micro area 2e separately and complete film micro area 2f can utilize opaque or partially transparent is implemented net-point printing (dot printing) and is formed, or utilize and to comprise but be not limited only to the trnaslucent materials of polycarbonate (PC), form via coating (coating), vacuum evaporation or ion beam sputtering deposition or the like processing mode.
Secondly, because microstructured layers 2d and non-integral are that black covers material, light by the time can produce partly reflection, light is come back in the original light-path to be utilized again, can promote the whole lighting efficiency of light diffusing sheet 4, and when the microstructured layers 2d of light by forming, can produce the diffusion phenomenon, and then make the luminous more even of this zone in each angle of visibility by film micro area 2e that separates and complete film micro area 2f.
Fig. 4 A, 4B is the light diffusing sheet 5 of the improved light glow of second embodiment of the invention, itself and Fig. 3 A, the main difference of 3B is, microstructured layers 2g has a plurality of film micro area 2h that separate that line up multiple row from left to right, the film micro area 2h that respectively separates is shaped as square, and the size of the film micro area 2h that separates in each row becomes gradually from left to right and changes, spacing between the spacing in each row between adjacent film micro area 2h that separates and the film micro area 2h that separate of adjacent two row is from a left side and the right side gradually changes, complete film micro area 2i is positioned at the right side of the film micro area 2h that multiple row separates and is the film micro area 2h that is designed to greater than respectively separating, therefore complete film micro area 2i cooperates with a plurality of film micro area 2h that separate and forms a specific pattern of density variation, this regional transmittance is changed, control the distribution of light in bright line zone, can reach the purpose of improving that reduces or eliminates bright line.
Though the present invention has utilized above-mentioned preferred embodiments to disclose in detail, so it is not that various changes and the modification carried out on basis of the present invention should belong to protection scope of the present invention in order to qualification the present invention.
[component symbol explanation]
1 light diffusing sheet
2 substrates
The 2a diffusion layer
The 2b antistatic layer
The 2c shielding layer
The 2d microstructured layers
The film micro area that 2e separates
The film micro area that 2f is complete
The 2g microstructured layers
The film micro area that 2h separates
The film micro area that 2i is complete
The light diffusing sheet of 3 tool shielding layers
The light diffusing sheet of 4 tool microstructured layers
The light diffusing sheet of 5 tool microstructured layers
Claims (18)
1. optical element that can improve light glow, it has an incidence surface and an exiting surface, can be for light via this incidence surface to exiting surface and by this optical element, it is characterized in that: this optical element comprises:
At least one microstructured layers, be arranged on the one side of this incidence surface or exiting surface, this at least one microstructured layers has a plurality of film micro areas that separate and film micro area that at least one is complete, this complete film micro area is greater than the film micro area that respectively separates, and film micro area that should be separately cooperates with complete film micro area and forms a predetermined pattern.
2. the optical element that improves light glow as claimed in claim 1 is characterized in that: the density of this predetermined pattern is through design, improves light glow in order to change the transmittance of this optical element, to use.
3. the optical element that improves light glow as claimed in claim 2 is characterized in that: the design of density is to reach by the spacing between the shape that changes each film micro area, size or adjacent film micro area.
4. the optical element that improves light glow as claimed in claim 1 is characterized in that: wherein the transparency of each film micro area is through design, improves light glow in order to change the transmittance of this optical element, to use.
5. the optical element that improves light glow as claimed in claim 4 is characterized in that: wherein the design of transparency is to reach by the material that changes each film micro area.
6. the optical element that improves light glow as claimed in claim 1 is characterized in that: wherein each film micro area is a printing net-point.
7. the optical element that improves light glow as claimed in claim 6 is characterized in that: wherein printing net-point is to be formed by uvioresistant printing ink.
8. the optical element that improves light glow as claimed in claim 7 is characterized in that: wherein uvioresistant printing ink is opaque.
9. the optical element that improves light glow as claimed in claim 7 is characterized in that: wherein uvioresistant printing ink is partially transparent.
10. the optical element that improves light glow as claimed in claim 1 is characterized in that: wherein each film micro area is to be formed by trnaslucent materials.
11. the optical element that improves light glow as claimed in claim 10 is characterized in that: wherein this trnaslucent materials is a polycarbonate.
12. the optical element that improves light glow as claimed in claim 11 is characterized in that: wherein this trnaslucent materials is to form with coating, vacuum evaporation or ion beam sputtering deposition mode.
13. as each described optical element that improves light glow of claim 1 to 12, it is characterized in that: wherein optical element is a light diffusing sheet.
14. the optical element that improves light glow as claimed in claim 13, it is characterized in that: wherein light diffusing sheet comprises:
One substrate;
One is located at the diffusion layer on a surface of substrate, diffusion layer towards the apparent surface of this substrate surface as exiting surface; And
One is located at another surperficial antistatic layer of substrate, antistatic layer towards another surperficial apparent surface of this substrate as incidence surface,
Wherein at least one microstructured layers is to be arranged at diffusion layer as exiting surface or antistatic layer on the one side as incidence surface.
15. as each described optical element that improves light glow of claim 1 to 12, it is characterized in that: wherein optical element is a concentration piece.
16. the optical element that improves light glow as claimed in claim 15, it is characterized in that: wherein concentration piece comprises:
One substrate, a surface of this substrate is as incidence surface; And
One is located at another surperficial light collecting layer of substrate, light collecting layer towards another surperficial apparent surface of this substrate as exiting surface,
Wherein at least one microstructured layers is to be arranged at light collecting layer as exiting surface or substrate on the one side as incidence surface.
17. a module backlight has light diffusing sheet, it is characterized in that: light diffusing sheet comprises:
One substrate;
One is located at the diffusion layer on a surface of substrate, diffusion layer towards the apparent surface of this substrate surface as exiting surface; And
One is located at another surperficial antistatic layer of substrate, antistatic layer towards another surperficial apparent surface of this substrate as incidence surface,
Wherein at least one microstructured layers is to be arranged at diffusion layer as exiting surface or antistatic layer on the one side as incidence surface.
18. a module backlight has concentration piece, it is characterized in that: this concentration piece comprises:
One substrate, a surface of this substrate is as incidence surface; And
One is located at another surperficial light collecting layer of substrate, light collecting layer towards another surperficial apparent surface of this substrate as exiting surface,
Wherein at least one microstructured layers is to be arranged at light collecting layer as exiting surface or substrate on the one side as incidence surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610004699 CN101021576A (en) | 2006-02-15 | 2006-02-15 | Optical component capable of improving light glow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610004699 CN101021576A (en) | 2006-02-15 | 2006-02-15 | Optical component capable of improving light glow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101021576A true CN101021576A (en) | 2007-08-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610004699 Pending CN101021576A (en) | 2006-02-15 | 2006-02-15 | Optical component capable of improving light glow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101021576A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511925A (en) * | 2013-09-18 | 2014-01-15 | 上海向隆电子科技有限公司 | Thin direct-lighting type backlight module |
| CN109856714A (en) * | 2018-10-23 | 2019-06-07 | 友达光电股份有限公司 | The display of light leakage prevention film assembly and application the light leakage prevention film assembly |
| CN110955083A (en) * | 2019-09-30 | 2020-04-03 | 厦门天马微电子有限公司 | Display device |
| CN111487699A (en) * | 2020-05-28 | 2020-08-04 | 马鞍山东毅新材料科技有限公司 | Diffusion film for preventing light source diffusion at edge of display screen and preparation method thereof |
-
2006
- 2006-02-15 CN CN 200610004699 patent/CN101021576A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511925A (en) * | 2013-09-18 | 2014-01-15 | 上海向隆电子科技有限公司 | Thin direct-lighting type backlight module |
| CN109856714A (en) * | 2018-10-23 | 2019-06-07 | 友达光电股份有限公司 | The display of light leakage prevention film assembly and application the light leakage prevention film assembly |
| CN109856714B (en) * | 2018-10-23 | 2021-06-04 | 友达光电股份有限公司 | Light leakage prevention film assembly and display using same |
| CN110955083A (en) * | 2019-09-30 | 2020-04-03 | 厦门天马微电子有限公司 | Display device |
| CN110955083B (en) * | 2019-09-30 | 2022-10-11 | 厦门天马微电子有限公司 | Display device |
| CN111487699A (en) * | 2020-05-28 | 2020-08-04 | 马鞍山东毅新材料科技有限公司 | Diffusion film for preventing light source diffusion at edge of display screen and preparation method thereof |
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