发明名称 |
APPARATUS AND METHOD FOR MAKING FLEXIBLE WAVEGUIDE SUBSTRATES FOR USE WITH LIGHT BASED TOUCH SCREENS |
摘要 |
<p>Flexible optical waveguide substrates that can be used with touch screen displays. The waveguide substrates include a flexible base material. A first optical layer having a first index of refraction value is formed on the flexible base material. A second optical layer is then formed on the first optical layer, the second optical layer being patterned to form a plurality of optical elements and waveguides respectively. The second optical layer also has a second index of refraction value higher than the first index of refraction value. Lastly, a third optical layer is formed on the second optical layer. The third optical layer has a third index of refraction value lower than the second index of refraction value. The high N second layer is therefore sandwiched between the lower N first and third layers, creating an internally reflective surface wherever the high N and low N materials are in contact. The base material and first, second and third optical layers thus form a flexible waveguide substrate.</p> |
申请公布号 |
WO2006004775(A1) |
申请公布日期 |
2006.01.12 |
申请号 |
WO2005US22966 |
申请日期 |
2005.06.28 |
申请人 |
NATIONAL SEMICONDUCTOR CORPORATION;SMITS, GERARD, DIRK |
发明人 |
SMITS, GERARD, DIRK |
分类号 |
F21V8/00;G02B6/122;G06F3/033;(IPC1-7):G02B6/00 |
主分类号 |
F21V8/00 |
代理机构 |
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代理人 |
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地址 |
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