Display cover member and production method therefor
AssigneeNippon Electric Glass Co., Ltd.
InventorsKoji Ikegami, Tomohiro Nagakane
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Abstract
Provided is a display cover member that enables realization of a display having less reflection of the background and excellent anti-sparkle properties. The display cover member has a feature that: one of principal surfaces is formed of an uneven surface; a mean width of roughness profile elements (RSm) of the uneven surface defined by JIS B 0601-2013 is not less than 1 μm and not more than 30 μm; and a ratio θ/Rku between an average inclined angle (θ) of the roughness profile of the uneven surface and a kurtosis of the roughness profile (Rku) of the uneven surface defined by JIS B 0601-2013 is not less than 0.40° and not more than 1.08°.
Claims11
A display cover member comprising:
- a light-transmissive plate including a principal surface;
- and
- a coating film that covers at least a portion of the principal surface of the light-transmissive plate;
- wherein
- the coating film has an uneven surface, is made of silicon oxide, contains no scattering particles, and is a homogeneous film;
- a mean width of roughness profile elements (RSm) of the uneven surface defined by JIS B 0601-2013 is not less than 1 μm and not more than 18 μm;
- and
- a ratio θ/Rku between an average inclined angle (θ) of the roughness profile of the uneven surface and a kurtosis of the roughness profile (Rku) of the uneven surface defined by JIS B 0601-2013 is not less than 0.40° and not more than 1.08°.
Dependencies are inferred from the claim text.