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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Bibliographic Details
Main Author SUN ZHENGHONG
Format Patent
LanguageChinese
English
Published 10.06.2009
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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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
Bibliography:Application Number: CN20071187592