| 摘要 |
A conductive pattern, made of a transparent conductive oxide, such as ITO including electrodes ( 2 ) and conductive paths ( 4 ) is formed on one face of a transparent substrate ( 3 ) made of sapphire or toughened glass, then coated with a first layer ( 5 ) of a transparent dielectric with a low refractive index, such as MgF<SUB>2 </SUB>or LiF<SUB>2</SUB>, and then a second layer ( 7 ) of another transparent dielectric having a higher refractive index than the first, such as Al<SUB>2</SUB>O<SUB>3</SUB>, Ta<SUB>2</SUB>O<SUB>5 </SUB>or DLC.
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