| Presentation | 2012-01-27 Influence of the back reflection on the out-coupling efficiency in organic light emitting devices with micro lens array Yuji Sawatari, Takao Goto, Takumi Ohashi, Akiyoshi Mikami, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We investigated the light extraction efficiency of Organic light emitting device (OLED), using micro-lens array by evaluating optical transmittance properties of micro-lens sheet and back-reflection characteristics of OLED from experimental and theoretical approaches. In result, light extraction coefficient of the micro-lens sheet was improved by a factor of 1.3 to 2.2 depending on the back reflectivity of the sheet. It was found that optical matching between micro-lens array and OLED plays an important role in light extraction from the device, rather than the configuration of micro-lens array. It was concluded that out-coupling efficiency of the OLED with micro-lens sheet can be improved in the between 1.2 to 1.8 times depending on the back reflectivity and optical mode distribution of the device. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OLED / Micro Lens / Reflection / Optical Analysis |
| Paper # | EID2011-16 |
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| Conference Information | |
| Committee | EID |
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| Conference Date | 2012/1/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Electronic Information Displays (EID) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Influence of the back reflection on the out-coupling efficiency in organic light emitting devices with micro lens array |
| Sub Title (in English) | |
| Keyword(1) | OLED |
| Keyword(2) | Micro Lens |
| Keyword(3) | Reflection |
| Keyword(4) | Optical Analysis |
| 1st Author's Name | Yuji Sawatari |
| 1st Author's Affiliation | Department of Electrical Engineering, Kanazawa Institute of Technology() |
| 2nd Author's Name | Takao Goto |
| 2nd Author's Affiliation | Department of Electrical Engineering, Kanazawa Institute of Technology |
| 3rd Author's Name | Takumi Ohashi |
| 3rd Author's Affiliation | Department of Electrical Engineering, Kanazawa Institute of Technology |
| 4th Author's Name | Akiyoshi Mikami |
| 4th Author's Affiliation | Department of Electrical Engineering, Kanazawa Institute of Technology |
| Date | 2012-01-27 |
| Paper # | EID2011-16 |
| Volume (vol) | vol.111 |
| Number (no) | 421 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |