【獲證專利公告】恭賀! 光電系林宗賢教授及團隊之研究成果「投影式透明顯示裝置」獲得美國發明專利
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發明人 |
林宗賢教授 |
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系所 |
光電系 |
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專利名稱 |
投影式透明顯示裝置 Projection type transparent display |
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證書號 |
US11,493,787 |
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公告日期 |
111年11月8日 |
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專利摘要 |
A projection type transparent display includes a polarization modulator and a reflective layer. The polarization modulator is stacked in sequence by a linear polarizer, a liquid crystal layer and a phase retarder. The reflective layer is stacked on the phase retarder. A projection light is incident on the linear polarizer to form a linearly polarized light. The liquid crystal layer changes a polarization direction of the linearly polarized light. Two kinds of linearly polarized projection lights with polarization directions orthogonal to each other are respectively formed and pass through the phase retarder to respectively form two kinds of circularly polarized projection lights with opposite rotation directions. A background light is incident on the reflective layer. A circularly polarized background light with the same spiral direction is reflected, and the circularly polarized background light opposite to the spiral direction passes through the reflective layer and is incident on the polarization modulator. |
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技轉服務窗口 |
卓妤芸(分機2627) |
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