High luminous transmittance touch control device
The invention relates to a touch device with high light transmittance. The touch device comprises a base plate, a first lower anti-reflecting layer, a touch unit and an upper anti-reflecting layer, wherein the first lower anti-reflecting layer, the touch unit and the upper anti-reflecting layer are...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
10.06.2009
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a touch device with high light transmittance. The touch device comprises a base plate, a first lower anti-reflecting layer, a touch unit and an upper anti-reflecting layer, wherein the first lower anti-reflecting layer, the touch unit and the upper anti-reflecting layer are orderly piled up on the top surface of the base plate. The optical thickness of the first lower anti-reflecting layer is less than or equal to one fourth of the visible wavelength, and the refractive indexes of the first lower anti-reflecting layer and the upper anti-reflecting layer are less than or equal to the refractive index of the base plate both. By matching the refractive index of the upper anti-reflecting layer and the optical thickness of the first lower anti-reflecting layer, the light wave reflected by the upper anti-reflecting layer and the light wave reflected by the touch unit, the first lower anti-reflecting layer and the top surface of the base plate generate destructive interference, because the l |
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Bibliography: | Application Number: CN20071187592 |