Compound Optical Film Using Gray Scale Mask Embedded with Microvoids
This study presents a compound optical film to improve luminance and uniformity to apply in side-LED (light-emitting diode) backlight module. LIGA (lithographie galvanoformung abformung) technology, soft lithography, and homemade gray scale mask were combined to fabricate microlens array. Optical fi...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/942018 |
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| _version_ | 1850159584832913408 |
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| author | C. T. Pan Y. C. Chen Y. J. Chen W. C. Wang H. C. Yang H. C. Wu |
| author_facet | C. T. Pan Y. C. Chen Y. J. Chen W. C. Wang H. C. Yang H. C. Wu |
| author_sort | C. T. Pan |
| collection | DOAJ |
| description | This study presents a compound optical film to improve luminance and uniformity to apply in side-LED (light-emitting diode) backlight module. LIGA (lithographie galvanoformung abformung) technology, soft lithography, and homemade gray scale mask were combined to fabricate microlens array. Optical film with variable size microlens array embedded with microvoids was designed and manufactured. FRED software was used to simulate optical performance. Microvoids were quantitatively embedded in the PDMS (polydimethylsiloxane) optical film. Under the quantitative control of air pressure, those microvoids inside the optical film can cause light diffusion. The compound optical film with embedded microvoids, multiaspect ratio, and variable size microlens array can be fabricated quickly without substrate. Luminance colorimeter BM-7A from TOPCON was used to carry out the optical measurement. According to the measured data, the compound optical film with embedded microvoids can enhance the luminance up to 5% and the uniformity up to
6.5% ~ 8.4%. The optical efficiency can be improved via the compound optical film. |
| format | Article |
| id | doaj-art-b4a20f62d3ab4d3bb6c7167b7b593684 |
| institution | OA Journals |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-b4a20f62d3ab4d3bb6c7167b7b5936842025-08-20T02:23:28ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242012-01-01201210.1155/2012/942018942018Compound Optical Film Using Gray Scale Mask Embedded with MicrovoidsC. T. Pan0Y. C. Chen1Y. J. Chen2W. C. Wang3H. C. Yang4H. C. Wu5Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, TaiwanDepartment of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, TaiwanDepartment of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, TaiwanDepartment of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, TaiwanDepartment of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, TaiwanDepartment of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, TaiwanThis study presents a compound optical film to improve luminance and uniformity to apply in side-LED (light-emitting diode) backlight module. LIGA (lithographie galvanoformung abformung) technology, soft lithography, and homemade gray scale mask were combined to fabricate microlens array. Optical film with variable size microlens array embedded with microvoids was designed and manufactured. FRED software was used to simulate optical performance. Microvoids were quantitatively embedded in the PDMS (polydimethylsiloxane) optical film. Under the quantitative control of air pressure, those microvoids inside the optical film can cause light diffusion. The compound optical film with embedded microvoids, multiaspect ratio, and variable size microlens array can be fabricated quickly without substrate. Luminance colorimeter BM-7A from TOPCON was used to carry out the optical measurement. According to the measured data, the compound optical film with embedded microvoids can enhance the luminance up to 5% and the uniformity up to 6.5% ~ 8.4%. The optical efficiency can be improved via the compound optical film.http://dx.doi.org/10.1155/2012/942018 |
| spellingShingle | C. T. Pan Y. C. Chen Y. J. Chen W. C. Wang H. C. Yang H. C. Wu Compound Optical Film Using Gray Scale Mask Embedded with Microvoids Advances in Condensed Matter Physics |
| title | Compound Optical Film Using Gray Scale Mask Embedded with Microvoids |
| title_full | Compound Optical Film Using Gray Scale Mask Embedded with Microvoids |
| title_fullStr | Compound Optical Film Using Gray Scale Mask Embedded with Microvoids |
| title_full_unstemmed | Compound Optical Film Using Gray Scale Mask Embedded with Microvoids |
| title_short | Compound Optical Film Using Gray Scale Mask Embedded with Microvoids |
| title_sort | compound optical film using gray scale mask embedded with microvoids |
| url | http://dx.doi.org/10.1155/2012/942018 |
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